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chrome-ec/board/kukui/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.
*/
#include "adc.h"
#include "adc_chip.h"
#include "backlight.h"
#include "button.h"
#include "charge_manager.h"
#include "charge_ramp.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_tcs3400.h"
#include "driver/battery/max17055.h"
#include "driver/bc12/pi3usb9201.h"
#include "driver/charger/rt946x.h"
#include "driver/sync.h"
#include "driver/tcpm/mt6370.h"
#include "ec_commands.h"
#include "extpower.h"
#include "gpio.h"
#include "hooks.h"
#include "host_command.h"
#include "i2c.h"
#include "lid_switch.h"
#include "power.h"
#include "power_button.h"
#include "pwm.h"
#include "pwm_chip.h"
#include "registers.h"
#include "spi.h"
#include "system.h"
#include "task.h"
#include "tcpm.h"
#include "timer.h"
#include "usb_charge.h"
#include "usb_mux.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)
static void tcpc_alert_event(enum gpio_signal signal)
{
schedule_deferred_pd_interrupt(0 /* port */);
}
static void gauge_interrupt(enum gpio_signal signal)
{
task_wake(TASK_ID_CHARGER);
}
#include "gpio_list.h"
/******************************************************************************/
/* ADC channels. Must be in the exactly same order as in enum adc_channel. */
const struct adc_t adc_channels[] = {
[ADC_BOARD_ID] = {"BOARD_ID", 3300, 4096, 0, STM32_AIN(10)},
[ADC_EC_SKU_ID] = {"EC_SKU_ID", 3300, 4096, 0, STM32_AIN(8)},
[ADC_BATT_ID] = {"BATT_ID", 3300, 4096, 0, STM32_AIN(7)},
[ADC_POGO_ADC_INT_L] = {"POGO_ADC_INT_L", 3300, 4096, 0, STM32_AIN(6)},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
/******************************************************************************/
/* I2C ports */
const struct i2c_port_t i2c_ports[] = {
{"charger", I2C_PORT_CHARGER, 400, GPIO_I2C1_SCL, GPIO_I2C1_SDA},
{"tcpc0", I2C_PORT_TCPC0, 400, GPIO_I2C1_SCL, GPIO_I2C1_SDA},
{"battery", I2C_PORT_BATTERY, 400, GPIO_I2C2_SCL, GPIO_I2C2_SDA},
{"accelgyro", I2C_PORT_ACCEL, 400, GPIO_I2C2_SCL, GPIO_I2C2_SDA},
{"bc12", I2C_PORT_BC12, 400, GPIO_I2C2_SCL, GPIO_I2C2_SDA},
{"als", I2C_PORT_ALS, 400, GPIO_I2C2_SCL, GPIO_I2C2_SDA},
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
#define BC12_I2C_ADDR_FLAGS PI3USB9201_I2C_ADDR_3_FLAGS
/* power signal list. Must match order of enum power_signal. */
const struct power_signal_info power_signal_list[] = {
{GPIO_AP_IN_SLEEP_L, POWER_SIGNAL_ACTIVE_LOW, "AP_IN_S3_L"},
{GPIO_PMIC_EC_RESETB, POWER_SIGNAL_ACTIVE_HIGH, "PMIC_PWR_GOOD"},
};
BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);
/******************************************************************************/
/* SPI devices */
const struct spi_device_t spi_devices[] = {
};
const unsigned int spi_devices_used = ARRAY_SIZE(spi_devices);
/******************************************************************************/
const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = {
{
.bus_type = EC_BUS_TYPE_I2C,
.i2c_info = {
.port = I2C_PORT_TCPC0,
.addr_flags = MT6370_TCPC_I2C_ADDR_FLAGS,
},
.drv = &mt6370_tcpm_drv,
},
};
struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = {
{
.driver = &virtual_usb_mux_driver,
.hpd_update = &virtual_hpd_update,
},
};
void board_reset_pd_mcu(void)
{
}
uint16_t tcpc_get_alert_status(void)
{
uint16_t status = 0;
if (!gpio_get_level(GPIO_USB_C0_PD_INT_ODL))
status |= PD_STATUS_TCPC_ALERT_0;
return status;
}
static void board_pogo_charge_init(void)
{
int i;
/* Initialize all charge suppliers to 0 */
for (i = 0; i < CHARGE_SUPPLIER_COUNT; i++)
charge_manager_update_charge(i, CHARGE_PORT_POGO, NULL);
}
DECLARE_HOOK(HOOK_INIT, board_pogo_charge_init,
HOOK_PRIO_CHARGE_MANAGER_INIT + 1);
static int force_discharge;
int board_set_active_charge_port(int charge_port)
{
CPRINTS("New chg p%d", charge_port);
/* ignore all request when discharge mode is on */
if (force_discharge)
return EC_SUCCESS;
switch (charge_port) {
case CHARGE_PORT_USB_C:
/* Don't charge from a source port */
if (board_vbus_source_enabled(charge_port))
return -1;
gpio_set_level(GPIO_EN_POGO_CHARGE_L, 1);
gpio_set_level(GPIO_EN_USBC_CHARGE_L, 0);
break;
case CHARGE_PORT_POGO:
gpio_set_level(GPIO_EN_USBC_CHARGE_L, 1);
gpio_set_level(GPIO_EN_POGO_CHARGE_L, 0);
break;
case CHARGE_PORT_NONE:
/*
* To ensure the fuel gauge (max17055) is always powered
* even when battery is disconnected, keep VBAT rail on but
* set the charging current to minimum.
*/
gpio_set_level(GPIO_EN_POGO_CHARGE_L, 1);
gpio_set_level(GPIO_EN_USBC_CHARGE_L, 1);
charger_set_current(0);
break;
default:
panic("Invalid charge port\n");
break;
}
return EC_SUCCESS;
}
void board_set_charge_limit(int port, int supplier, int charge_ma,
int max_ma, int charge_mv)
{
charge_set_input_current_limit(MAX(charge_ma,
CONFIG_CHARGER_INPUT_CURRENT), charge_mv);
}
int board_discharge_on_ac(int enable)
{
int ret, port;
if (enable) {
port = CHARGE_PORT_NONE;
} else {
/* restore the charge port state */
port = charge_manager_get_override();
if (port == OVERRIDE_OFF)
port = charge_manager_get_active_charge_port();
}
ret = board_set_active_charge_port(port);
if (ret)
return ret;
force_discharge = enable;
return charger_discharge_on_ac(enable);
}
int extpower_is_present(void)
{
/*
* The charger will indicate VBUS presence if we're sourcing 5V,
* so exclude such ports.
*/
int usb_c_extpower_present;
if (board_vbus_source_enabled(CHARGE_PORT_USB_C))
usb_c_extpower_present = 0;
else
usb_c_extpower_present = tcpm_get_vbus_level(CHARGE_PORT_USB_C);
return usb_c_extpower_present || gpio_get_level(GPIO_POGO_VBUS_PRESENT);
}
int pd_snk_is_vbus_provided(int port)
{
if (port)
panic("Invalid charge port\n");
return rt946x_is_vbus_ready();
}
#if defined(BOARD_KUKUI) || defined(BOARD_KODAMA)
/* dummy interrupt function for kukui */
void pogo_adc_interrupt(enum gpio_signal signal)
{
}
#endif
static void board_init(void)
{
/* If the reset cause is external, pulse PMIC force reset. */
if (system_get_reset_flags() == RESET_FLAG_RESET_PIN) {
gpio_set_level(GPIO_PMIC_FORCE_RESET_ODL, 0);
msleep(100);
gpio_set_level(GPIO_PMIC_FORCE_RESET_ODL, 1);
}
/* Set SPI1 PB13/14/15 pins to high speed */
STM32_GPIO_OSPEEDR(GPIO_B) |= 0xfc000000;
/* Enable TCPC alert interrupts */
gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL);
/* Enable charger interrupts */
gpio_enable_interrupt(GPIO_CHARGER_INT_ODL);
#ifdef SECTION_IS_RW
/* Enable interrupts from BMI160 sensor. */
gpio_enable_interrupt(GPIO_ACCEL_INT_ODL);
/* Enable interrupt for the camera vsync. */
gpio_enable_interrupt(GPIO_SYNC_INT);
#endif /* SECTION_IS_RW */
/* Enable interrupt from PMIC. */
gpio_enable_interrupt(GPIO_PMIC_EC_RESETB);
/* Enable gauge interrupt from max17055 */
gpio_enable_interrupt(GPIO_GAUGE_INT_ODL);
/* Enable pogo interrupt */
gpio_enable_interrupt(GPIO_POGO_ADC_INT_L);
if (IS_ENABLED(BOARD_KRANE))
/* Display bias settings. */
mt6370_db_set_voltages(6000, 5800, 5800);
/* Enable pogo charging signal */
gpio_enable_interrupt(GPIO_POGO_VBUS_PRESENT);
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
static void board_rev_init(void)
{
/* Board revision specific configs. */
/*
* It's a P1 pin BOOTBLOCK_MUX_OE, also a P2 pin BC12_DET_EN.
* Keep this pin defaults to P1 setting since that eMMC enabled with
* High-Z stat.
*/
if (IS_ENABLED(BOARD_KUKUI) && board_get_version() == 1)
gpio_set_flags(GPIO_BC12_DET_EN, GPIO_ODR_HIGH);
if (board_get_version() >= 2) {
/*
* Enable MT6370 DB_POSVOUT/DB_NEGVOUT (controlled by _EN pins).
*/
mt6370_db_external_control(1);
}
if (board_get_version() == 2) {
/* configure PI3USB9201 to USB Path ON Mode */
i2c_write8(I2C_PORT_BC12, BC12_I2C_ADDR_FLAGS,
PI3USB9201_REG_CTRL_1,
(PI3USB9201_USB_PATH_ON <<
PI3USB9201_REG_CTRL_1_MODE_SHIFT));
}
}
DECLARE_HOOK(HOOK_INIT, board_rev_init, HOOK_PRIO_INIT_ADC + 1);
void board_config_pre_init(void)
{
STM32_RCC_AHBENR |= STM32_RCC_HB_DMA1;
/*
* Remap USART1 and SPI2 DMA:
*
* Ch4: USART1_TX / Ch5: USART1_RX (1000)
* Ch6: SPI2_RX / Ch7: SPI2_TX (0011)
*/
STM32_DMA_CSELR(STM32_DMAC_CH4) = (8 << 12) | (8 << 16) |
(3 << 20) | (3 << 24);
}
enum kukui_board_version {
BOARD_VERSION_UNKNOWN = -1,
BOARD_VERSION_REV0 = 0,
BOARD_VERSION_REV1 = 1,
BOARD_VERSION_REV2 = 2,
BOARD_VERSION_REV3 = 3,
BOARD_VERSION_REV4 = 4,
BOARD_VERSION_REV5 = 5,
BOARD_VERSION_REV6 = 6,
BOARD_VERSION_REV7 = 7,
BOARD_VERSION_REV8 = 8,
BOARD_VERSION_REV9 = 9,
BOARD_VERSION_REV10 = 10,
BOARD_VERSION_REV11 = 11,
BOARD_VERSION_REV12 = 12,
BOARD_VERSION_REV13 = 13,
BOARD_VERSION_REV14 = 14,
BOARD_VERSION_REV15 = 15,
BOARD_VERSION_COUNT,
};
struct {
enum kukui_board_version version;
int expect_mv;
} const kukui_boards[] = {
{ BOARD_VERSION_REV0, 109 }, /* 51.1K , 2.2K(gru 3.3K) ohm */
{ BOARD_VERSION_REV1, 211 }, /* 51.1k , 6.8K ohm */
{ BOARD_VERSION_REV2, 319 }, /* 51.1K , 11K ohm */
{ BOARD_VERSION_REV3, 427 }, /* 56K , 17.4K ohm */
{ BOARD_VERSION_REV4, 542 }, /* 51.1K , 22K ohm */
{ BOARD_VERSION_REV5, 666 }, /* 51.1K , 30K ohm */
{ BOARD_VERSION_REV6, 781 }, /* 51.1K , 39.2K ohm */
{ BOARD_VERSION_REV7, 900 }, /* 56K , 56K ohm */
{ BOARD_VERSION_REV8, 1023 }, /* 47K , 61.9K ohm */
{ BOARD_VERSION_REV9, 1137 }, /* 47K , 80.6K ohm */
{ BOARD_VERSION_REV10, 1240 }, /* 56K , 124K ohm */
{ BOARD_VERSION_REV11, 1343 }, /* 51.1K , 150K ohm */
{ BOARD_VERSION_REV12, 1457 }, /* 47K , 200K ohm */
{ BOARD_VERSION_REV13, 1576 }, /* 47K , 330K ohm */
{ BOARD_VERSION_REV14, 1684 }, /* 47K , 680K ohm */
{ BOARD_VERSION_REV15, 1800 }, /* 56K , NC */
};
BUILD_ASSERT(ARRAY_SIZE(kukui_boards) == BOARD_VERSION_COUNT);
#define THRESHOLD_MV 56 /* Simply assume 1800/16/2 */
int board_get_version(void)
{
static int version = BOARD_VERSION_UNKNOWN;
int mv;
int i;
if (version != BOARD_VERSION_UNKNOWN)
return version;
gpio_set_level(GPIO_EC_BOARD_ID_EN_L, 0);
/* Wait to allow cap charge */
msleep(10);
mv = adc_read_channel(ADC_BOARD_ID);
if (mv == ADC_READ_ERROR)
mv = adc_read_channel(ADC_BOARD_ID);
gpio_set_level(GPIO_EC_BOARD_ID_EN_L, 1);
for (i = 0; i < BOARD_VERSION_COUNT; ++i) {
if (mv < kukui_boards[i].expect_mv + THRESHOLD_MV) {
version = kukui_boards[i].version;
break;
}
}
return version;
}
/* Motion sensors */
/* Mutexes */
#ifdef SECTION_IS_RW
static struct mutex g_lid_mutex;
static struct bmi160_drv_data_t g_bmi160_data;
static struct als_drv_data_t g_tcs3400_data = {
.als_cal.scale = 1,
.als_cal.uscale = 0,
.als_cal.offset = 0,
};
static struct tcs3400_rgb_drv_data_t g_tcs3400_rgb_data = {
.device_scale = 1,
.device_uscale = 0,
.rgb_cal[X] = {
.scale = ALS_CHANNEL_SCALE(1),
.offset = 0,
},
.rgb_cal[Y] = {
.scale = ALS_CHANNEL_SCALE(1),
.offset = 0,
},
.rgb_cal[Z] = {
.scale = ALS_CHANNEL_SCALE(1),
.offset = 0,
},
};
#ifdef BOARD_KRANE
/* Matrix to rotate accelerometer into standard reference frame */
static const mat33_fp_t lid_standard_ref_rev3 = {
{0, FLOAT_TO_FP(-1), 0},
{FLOAT_TO_FP(1), 0, 0},
{0, 0, FLOAT_TO_FP(1)}
};
#endif /* BOARD_KRANE */
/* Matrix to rotate accelerometer into standard reference frame */
static const mat33_fp_t lid_standard_ref = {
{FLOAT_TO_FP(1), 0, 0},
{0, FLOAT_TO_FP(1), 0},
{0, 0, FLOAT_TO_FP(1)}
};
#ifdef CONFIG_MAG_BMI160_BMM150
/* Matrix to rotate accelrator into standard reference frame */
static const mat33_fp_t mag_standard_ref = {
{0, FLOAT_TO_FP(-1), 0},
{FLOAT_TO_FP(-1), 0, 0},
{0, 0, FLOAT_TO_FP(-1)}
};
#endif /* CONFIG_MAG_BMI160_BMM150 */
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,
.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,
.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 = {
/* Enable accel in S0 */
[SENSOR_CONFIG_EC_S0] = {
.odr = 10000 | ROUND_UP_FLAG,
.ec_rate = 100 * MSEC,
},
},
},
[LID_GYRO] = {
.name = "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_ACCEL,
.i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
.default_range = 1000, /* dps */
.rot_standard_ref = &lid_standard_ref,
.min_frequency = BMI160_GYRO_MIN_FREQ,
.max_frequency = BMI160_GYRO_MAX_FREQ,
},
#ifdef CONFIG_MAG_BMI160_BMM150
[LID_MAG] = {
.name = "Lid Mag",
.active_mask = SENSOR_ACTIVE_S0_S3,
.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,
.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),
},
#endif /* CONFIG_MAG_BMI160_BMM150 */
[CLEAR_ALS] = {
.name = "Clear Light",
.active_mask = SENSOR_ACTIVE_S0_S3,
.chip = MOTIONSENSE_CHIP_TCS3400,
.type = MOTIONSENSE_TYPE_LIGHT,
.location = MOTIONSENSE_LOC_LID,
.drv = &tcs3400_drv,
.drv_data = &g_tcs3400_data,
.port = I2C_PORT_ALS,
.i2c_spi_addr_flags = TCS3400_I2C_ADDR_FLAGS,
.rot_standard_ref = NULL,
.default_range = 0x10000, /* scale = 1x, uscale = 0 */
.min_frequency = TCS3400_LIGHT_MIN_FREQ,
.max_frequency = TCS3400_LIGHT_MAX_FREQ,
.config = {
/* Run ALS sensor in S0 */
[SENSOR_CONFIG_EC_S0] = {
.odr = 1000,
},
},
},
[RGB_ALS] = {
.name = "RGB Light",
.active_mask = SENSOR_ACTIVE_S0_S3,
.chip = MOTIONSENSE_CHIP_TCS3400,
.type = MOTIONSENSE_TYPE_LIGHT_RGB,
.location = MOTIONSENSE_LOC_LID,
.drv = &tcs3400_rgb_drv,
.drv_data = &g_tcs3400_rgb_data,
/*.port = I2C_PORT_ALS,*/ /* Unused. RGB channels read by CLEAR_ALS. */
.rot_standard_ref = NULL,
.default_range = 0x10000, /* scale = 1x, uscale = 0 */
.min_frequency = 0, /* 0 indicates we should not use sensor directly */
.max_frequency = 0, /* 0 indicates we should not use sensor directly */
},
[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);
const struct motion_sensor_t *motion_als_sensors[] = {
&motion_sensors[CLEAR_ALS],
};
#endif /* SECTION_IS_RW */
#ifdef BOARD_KRANE
static void fix_krane(void)
{
if (board_get_version() != 3)
return;
/*
* Fix backlight led maximum current: tolerance 120mA * 0.75 = 90mA.
* (b/133655155)
*/
mt6370_backlight_set_dim(MT6370_BLDIM_DEFAULT * 3 / 4);
#ifdef SECTION_IS_RW
/* Fix reference point */
motion_sensors[LID_ACCEL].rot_standard_ref = &lid_standard_ref_rev3;
motion_sensors[LID_GYRO].rot_standard_ref = &lid_standard_ref_rev3;
#endif /* SECTION_IS_RW */
}
DECLARE_HOOK(HOOK_INIT, fix_krane, HOOK_PRIO_INIT_ADC + 1);
#endif /* BOARD_KRANE */
int board_allow_i2c_passthru(int port)
{
return (port == I2C_PORT_VIRTUAL_BATTERY);
}
void usb_charger_set_switches(int port, enum usb_switch setting)
{
}
/*
* Return if VBUS is sagging too low
*/
int board_is_vbus_too_low(int port, enum chg_ramp_vbus_state ramp_state)
{
/*
* Though we have a more tolerant range (3.9V~13.4V), setting 4400 to
* prevent from a bad charger crashed.
*
* TODO(b:131284131): mt6370 VBUS reading is not accurate currently.
* Vendor will provide a workaround solution to fix the gap between ADC
* reading and actual voltage. After the workaround applied, we could
* try to raise this value to 4600. (when it says it read 4400, it is
* actually close to 4600)
*/
return charger_get_vbus_voltage(port) < 4400;
}
int board_charge_port_is_sink(int port)
{
/* TODO(b:128386458): Check POGO_ADC_INT_L */
return 1;
}
int board_charge_port_is_connected(int port)
{
return gpio_get_level(GPIO_POGO_VBUS_PRESENT);
}
void board_fill_source_power_info(int port,
struct ec_response_usb_pd_power_info *r)
{
r->meas.voltage_now = 3300;
r->meas.voltage_max = 3300;
r->meas.current_max = 1500;
r->meas.current_lim = 1500;
r->max_power = r->meas.voltage_now * r->meas.current_max;
}
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