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/* Copyright 2020 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.
*/
/* Common code for VARIANT_[DEDEDE|KEEBY]_IT8320 configuration */
#include "adc_chip.h"
#include "atomic.h"
#include "common.h"
#include "compile_time_macros.h"
#include "console.h"
#include "gpio.h"
#include "hooks.h"
#include "i2c.h"
#include "power.h"
#include "registers.h"
#define CPRINTUSB(format, args...) cprints(CC_USBCHARGE, format, ## args)
static void pp3300_a_pgood_low(void)
{
atomic_clear_bits(&pp3300_a_pgood, 1);
/* Disable low interrupt while asserted */
vcmp_enable(VCMP_SNS_PP3300_LOW, 0);
/* Enable high interrupt */
vcmp_enable(VCMP_SNS_PP3300_HIGH, 1);
/*
* Call power_signal_interrupt() with a fake GPIO in order for the
* chipset task to pick up the change in power sequencing signals.
*/
power_signal_interrupt(GPIO_PG_EC_DSW_PWROK);
}
static void pp3300_a_pgood_high(void)
{
atomic_or(&pp3300_a_pgood, 1);
/* Disable high interrupt while asserted */
vcmp_enable(VCMP_SNS_PP3300_HIGH, 0);
/* Enable low interrupt */
vcmp_enable(VCMP_SNS_PP3300_LOW, 1);
/*
* Call power_signal_interrupt() with a fake GPIO in order for the
* chipset task to pick up the change in power sequencing signals.
*/
power_signal_interrupt(GPIO_PG_EC_DSW_PWROK);
}
const struct vcmp_t vcmp_list[] = {
[VCMP_SNS_PP3300_LOW] = {
.name = "VCMP_SNS_PP3300_LOW",
.threshold = 600, /* mV */
.flag = LESS_EQUAL_THRESHOLD,
.vcmp_thresh_cb = &pp3300_a_pgood_low,
.scan_period = VCMP_SCAN_PERIOD_600US,
.adc_ch = CHIP_ADC_CH0,
},
[VCMP_SNS_PP3300_HIGH] = {
.name = "VCMP_SNS_PP3300_HIGH",
.threshold = 2700, /* mV */
.flag = GREATER_THRESHOLD,
.vcmp_thresh_cb = &pp3300_a_pgood_high,
.scan_period = VCMP_SCAN_PERIOD_600US,
.adc_ch = CHIP_ADC_CH0,
},
};
BUILD_ASSERT(ARRAY_SIZE(vcmp_list) <= CHIP_VCMP_COUNT);
BUILD_ASSERT(ARRAY_SIZE(vcmp_list) == VCMP_COUNT);
/* I2C Ports */
const struct i2c_port_t i2c_ports[] = {
{
"eeprom", I2C_PORT_EEPROM, 400, GPIO_EC_I2C_EEPROM_SCL,
GPIO_EC_I2C_EEPROM_SDA
},
{
"battery", I2C_PORT_BATTERY, 100, GPIO_EC_I2C_BATTERY_SCL,
GPIO_EC_I2C_BATTERY_SDA
},
#ifdef HAS_TASK_MOTIONSENSE
{
"sensor", I2C_PORT_SENSOR, 400, GPIO_EC_I2C_SENSOR_SCL,
GPIO_EC_I2C_SENSOR_SDA
},
#endif
#if CONFIG_USB_PD_PORT_MAX_COUNT > 1
{
"sub_usbc1", I2C_PORT_SUB_USB_C1, 1000,
GPIO_EC_I2C_SUB_USB_C1_SCL, GPIO_EC_I2C_SUB_USB_C1_SDA
},
#endif
{
"usbc0", I2C_PORT_USB_C0, 1000, GPIO_EC_I2C_USB_C0_SCL,
GPIO_EC_I2C_USB_C0_SDA
},
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
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