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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.
*/
/* Ampton/Apel board-specific configuration */
#include "adc.h"
#include "adc_chip.h"
#include "button.h"
#include "charge_state.h"
#include "common.h"
#include "cros_board_info.h"
#include "driver/accel_kionix.h"
#include "driver/accelgyro_bmi160.h"
#include "driver/ppc/sn5s330.h"
#include "driver/sync.h"
#include "driver/tcpm/it83xx_pd.h"
#include "driver/tcpm/ps8xxx.h"
#include "driver/usb_mux/it5205.h"
#include "extpower.h"
#include "gpio.h"
#include "hooks.h"
#include "i2c.h"
#include "intc.h"
#include "keyboard_scan.h"
#include "lid_switch.h"
#include "motion_sense.h"
#include "power.h"
#include "power_button.h"
#include "spi.h"
#include "switch.h"
#include "system.h"
#include "tablet_mode.h"
#include "tcpci.h"
#include "temp_sensor.h"
#include "thermistor.h"
#include "uart.h"
#include "usb_mux.h"
#include "usbc_ppc.h"
#include "util.h"
static uint8_t sku_id;
static void ppc_interrupt(enum gpio_signal signal)
{
if (signal == GPIO_USB_C0_PD_INT_ODL)
sn5s330_interrupt(0);
else if (signal == GPIO_USB_C1_PD_INT_ODL)
sn5s330_interrupt(1);
}
int ppc_get_alert_status(int port)
{
if (port == 0)
return gpio_get_level(GPIO_USB_C0_PD_INT_ODL) == 0;
else
return gpio_get_level(GPIO_USB_C1_PD_INT_ODL) == 0;
}
#include "gpio_list.h" /* Must come after other header files. */
/******************************************************************************/
/* USB-C MUX Configuration */
#define USB_PD_PORT_ITE_0 0
#define USB_PD_PORT_ITE_1 1
static int tune_mux(int port);
struct usb_mux ampton_usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = {
[USB_PD_PORT_ITE_0] = {
/* Use PS8751 as mux only */
.port_addr = MUX_PORT_AND_ADDR(
I2C_PORT_USBC0, PS8751_I2C_ADDR1_FLAGS),
.flags = USB_MUX_FLAG_NOT_TCPC,
.driver = &ps8xxx_usb_mux_driver,
.hpd_update = &ps8xxx_tcpc_update_hpd_status,
.board_init = &tune_mux,
},
[USB_PD_PORT_ITE_1] = {
/* Use PS8751 as mux only */
.port_addr = MUX_PORT_AND_ADDR(
I2C_PORT_USBC1, PS8751_I2C_ADDR1_FLAGS),
.flags = USB_MUX_FLAG_NOT_TCPC,
.driver = &ps8xxx_usb_mux_driver,
.hpd_update = &ps8xxx_tcpc_update_hpd_status,
.board_init = &tune_mux,
}
};
/* Some external monitors can't display content normally (eg. ViewSonic VX2880).
* We need to turn the mux for monitors to function normally.
*/
static int tune_mux(int port)
{
/* Auto EQ disabled, compensate for channel lost up to 3.6dB */
mux_write(port, PS8XXX_REG_MUX_DP_EQ_CONFIGURATION, 0x98);
/* DP output swing adjustment +15% */
mux_write(port, PS8XXX_REG_MUX_DP_OUTPUT_CONFIGURATION, 0xc0);
return EC_SUCCESS;
}
/******************************************************************************/
/* ADC channels */
const struct adc_t adc_channels[] = {
/* Vbus C0 sensing (10x voltage divider). PPVAR_USB_C0_VBUS */
[ADC_VBUS_C0] = {.name = "VBUS_C0",
.factor_mul = 10 * ADC_MAX_MVOLT,
.factor_div = ADC_READ_MAX + 1,
.shift = 0,
.channel = CHIP_ADC_CH13},
/* Vbus C1 sensing (10x voltage divider). SUB_EC_ADC */
[ADC_VBUS_C1] = {.name = "VBUS_C1",
.factor_mul = 10 * ADC_MAX_MVOLT,
.factor_div = ADC_READ_MAX + 1,
.shift = 0,
.channel = CHIP_ADC_CH14},
/* Convert to raw mV for thermistor table lookup */
[ADC_TEMP_SENSOR_AMB] = {.name = "TEMP_AMB",
.factor_mul = ADC_MAX_MVOLT,
.factor_div = ADC_READ_MAX + 1,
.shift = 0,
.channel = CHIP_ADC_CH3},
/* Convert to raw mV for thermistor table lookup */
[ADC_TEMP_SENSOR_CHARGER] = {.name = "TEMP_CHARGER",
.factor_mul = ADC_MAX_MVOLT,
.factor_div = ADC_READ_MAX + 1,
.shift = 0,
.channel = CHIP_ADC_CH5},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
const struct temp_sensor_t temp_sensors[] = {
[TEMP_SENSOR_BATTERY] = {.name = "Battery",
.type = TEMP_SENSOR_TYPE_BATTERY,
.read = charge_get_battery_temp},
[TEMP_SENSOR_AMBIENT] = {.name = "Ambient",
.type = TEMP_SENSOR_TYPE_BOARD,
.read = get_temp_3v3_51k1_47k_4050b,
.idx = ADC_TEMP_SENSOR_AMB},
[TEMP_SENSOR_CHARGER] = {.name = "Charger",
.type = TEMP_SENSOR_TYPE_BOARD,
.read = get_temp_3v3_13k7_47k_4050b,
.idx = ADC_TEMP_SENSOR_CHARGER},
};
BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
/* Motion sensors */
/* Mutexes */
static struct mutex g_lid_mutex;
static struct mutex g_base_mutex;
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)}
};
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 gyro_standard_ref = {
{ 0, FLOAT_TO_FP(-1), 0},
{ FLOAT_TO_FP(1), 0, 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;
/* Drivers */
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_SENSOR,
.i2c_spi_addr_flags = KX022_ADDR1_FLAGS,
.rot_standard_ref = &lid_standard_ref,
.default_range = 2, /* g */
.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_SENSOR,
.i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
.rot_standard_ref = &base_standard_ref,
.default_range = 4, /* g, to meet CDD 7.3.1/C-1-4 reqs */
.min_frequency = BMI160_ACCEL_MIN_FREQ,
.max_frequency = BMI160_ACCEL_MAX_FREQ,
.config = {
/* EC use accel for angle detection */
[SENSOR_CONFIG_EC_S0] = {
.odr = 13000 | ROUND_UP_FLAG,
.ec_rate = 100 * MSEC,
},
/* Sensor on for 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_S3,
.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_SENSOR,
.i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
.default_range = 1000, /* dps */
.rot_standard_ref = &gyro_standard_ref,
.min_frequency = BMI160_GYRO_MIN_FREQ,
.max_frequency = BMI160_GYRO_MAX_FREQ,
},
[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,
},
};
unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
static int board_is_convertible(void)
{
/* SKU IDs of Ampton & unprovisioned: 1, 2, 3, 4, 255 */
return sku_id == 1 || sku_id == 2 || sku_id == 3 || sku_id == 4
|| sku_id == 255;
}
static int board_with_ar_cam(void)
{
/* SKU ID of Ampton with AR Cam: 3, 4 */
return sku_id == 3 || sku_id == 4;
}
static void board_update_sensor_config_from_sku(void)
{
if (board_is_convertible()) {
motion_sensor_count = ARRAY_SIZE(motion_sensors);
/* Enable Base Accel interrupt */
gpio_enable_interrupt(GPIO_BASE_SIXAXIS_INT_L);
} else {
motion_sensor_count = 0;
gmr_tablet_switch_disable();
/* Base accel is not stuffed, don't allow line to float */
gpio_set_flags(GPIO_BASE_SIXAXIS_INT_L,
GPIO_INPUT | GPIO_PULL_DOWN);
}
if (board_with_ar_cam()) {
/* Enable interrupt from camera */
gpio_enable_interrupt(GPIO_WFCAM_VSYNC);
} else {
/* Camera isn't stuffed, don't allow line to float */
gpio_set_flags(GPIO_WFCAM_VSYNC, GPIO_INPUT | GPIO_PULL_DOWN);
}
}
static void board_customize_usbc_mux(uint32_t board_version)
{
if (board_version > 0) {
/* not proto, override the mux setting */
memcpy(usb_muxes, ampton_usb_muxes, sizeof(ampton_usb_muxes));
}
}
/* Read CBI from i2c eeprom and initialize variables for board variants */
static void cbi_init(void)
{
uint32_t val;
if (cbi_get_sku_id(&val) != EC_SUCCESS)
return;
sku_id = val;
ccprints("SKU: %d", sku_id);
board_update_sensor_config_from_sku();
if (cbi_get_board_version(&val) != EC_SUCCESS)
return;
ccprints("Board version: %d", val);
board_customize_usbc_mux(val);
}
DECLARE_HOOK(HOOK_INIT, cbi_init, HOOK_PRIO_INIT_I2C + 1);
void board_hibernate_late(void)
{
/*
* Set KSO/KSI pins to GPIO input function to disable keyboard scan
* while hibernating. This also prevent leakage current caused
* by internal pullup of keyboard scan module.
*/
gpio_set_flags_by_mask(GPIO_KSO_H, 0xff, GPIO_INPUT);
gpio_set_flags_by_mask(GPIO_KSO_L, 0xff, GPIO_INPUT);
gpio_set_flags_by_mask(GPIO_KSI, 0xff, GPIO_INPUT);
}
void board_overcurrent_event(int port, int is_overcurrented)
{
/* TODO(b/78344554): pass this signal upstream once hardware reworked */
cprints(CC_USBPD, "p%d: overcurrent!", port);
}
#ifndef TEST_BUILD
/* This callback disables keyboard when convertibles are fully open */
void lid_angle_peripheral_enable(int enable)
{
/*
* If the lid is in tablet position via other sensors,
* ignore the lid angle, which might be faulty then
* disable keyboard.
*/
if (tablet_get_mode())
enable = 0;
if (board_is_convertible())
keyboard_scan_enable(enable, KB_SCAN_DISABLE_LID_ANGLE);
}
#endif
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