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xiaozhi-esp32/main/boards/common/adc_battery_monitor.cc
2025-10-11 21:11:30 +08:00

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#include "adc_battery_monitor.h"
AdcBatteryMonitor::AdcBatteryMonitor(adc_unit_t adc_unit, adc_channel_t adc_channel, float upper_resistor, float lower_resistor, gpio_num_t charging_pin)
: charging_pin_(charging_pin) {
// Initialize charging pin (only if it's not NC)
if (charging_pin_ != GPIO_NUM_NC) {
gpio_config_t gpio_cfg = {
.pin_bit_mask = 1ULL << charging_pin,
.mode = GPIO_MODE_INPUT,
.pull_up_en = GPIO_PULLUP_DISABLE,
.pull_down_en = GPIO_PULLDOWN_DISABLE,
.intr_type = GPIO_INTR_DISABLE,
};
ESP_ERROR_CHECK(gpio_config(&gpio_cfg));
}
// Initialize ADC battery estimation
adc_battery_estimation_t adc_cfg = {
.internal = {
.adc_unit = adc_unit,
.adc_bitwidth = ADC_BITWIDTH_DEFAULT,
.adc_atten = ADC_ATTEN_DB_12,
},
.adc_channel = adc_channel,
.upper_resistor = upper_resistor,
.lower_resistor = lower_resistor
};
adc_cfg.charging_detect_cb = [](void *user_data) -> bool {
AdcBatteryMonitor *self = (AdcBatteryMonitor *)user_data;
if(self->charging_pin_ == GPIO_NUM_NC)
return false;
else
return gpio_get_level(self->charging_pin_) == 1;
};
adc_cfg.charging_detect_user_data = this;
adc_battery_estimation_handle_ = adc_battery_estimation_create(&adc_cfg);
// Initialize timer
esp_timer_create_args_t timer_cfg = {
.callback = [](void *arg) {
AdcBatteryMonitor *self = (AdcBatteryMonitor *)arg;
self->CheckBatteryStatus();
},
.arg = this,
.name = "adc_battery_monitor",
};
ESP_ERROR_CHECK(esp_timer_create(&timer_cfg, &timer_handle_));
ESP_ERROR_CHECK(esp_timer_start_periodic(timer_handle_, 1000000));
}
AdcBatteryMonitor::~AdcBatteryMonitor() {
if (adc_battery_estimation_handle_) {
ESP_ERROR_CHECK(adc_battery_estimation_destroy(adc_battery_estimation_handle_));
}
if (timer_handle_) {
esp_timer_stop(timer_handle_);
esp_timer_delete(timer_handle_);
}
}
bool AdcBatteryMonitor::IsCharging() {
// 如果没有充电检测引脚直接返回false
if (charging_pin_ == GPIO_NUM_NC) {
return false;
}
// 如果句柄无效回退到直接读取GPIO
if (adc_battery_estimation_handle_ == nullptr) {
return gpio_get_level(charging_pin_) == 1;
}
// 尝试通过adc_battery_estimation获取状态
bool is_charging = false;
esp_err_t err = adc_battery_estimation_get_charging_state(adc_battery_estimation_handle_, &is_charging);
if (err != ESP_OK) {
// 如果调用失败回退到直接读取GPIO引脚状态
return gpio_get_level(charging_pin_) == 1;
}
return is_charging;
}
bool AdcBatteryMonitor::IsDischarging() {
return !IsCharging();
}
uint8_t AdcBatteryMonitor::GetBatteryLevel() {
// 如果句柄无效,返回默认值
if (adc_battery_estimation_handle_ == nullptr) {
return 100;
}
float capacity = 0;
esp_err_t err = adc_battery_estimation_get_capacity(adc_battery_estimation_handle_, &capacity);
if (err != ESP_OK) {
return 100; // 出错时返回默认值
}
return (uint8_t)capacity;
}
void AdcBatteryMonitor::OnChargingStatusChanged(std::function<void(bool)> callback) {
on_charging_status_changed_ = callback;
}
void AdcBatteryMonitor::CheckBatteryStatus() {
// 避免在GPIO_NUM_NC情况下进行检查
if (charging_pin_ == GPIO_NUM_NC) {
return;
}
bool new_charging_status = IsCharging();
if (new_charging_status != is_charging_) {
is_charging_ = new_charging_status;
if (on_charging_status_changed_) {
on_charging_status_changed_(is_charging_);
}
}
}