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Code Issues Releases Wiki Activity

esp32_ble_tracker continuous and one shot scanning modes (#3649)

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Co-authored-by: Jonathan Valdez <@jonofmac>
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
This commit is contained in:
Jonathan V
2022-09-13 18:10:12 -05:00
committed by GitHub
parent 15f0e54cbf
commit 49465223a4
4 changed files with 112 additions and 3 deletions
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47
esphome/components/esp32_ble_tracker/esp32_ble_tracker.cpp
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@@ -46,13 +46,15 @@ void ESP32BLETracker::setup() {
global_esp32_ble_tracker = this;
this->scan_result_lock_ = xSemaphoreCreateMutex();
this->scan_end_lock_ = xSemaphoreCreateMutex();
this->scanner_idle_ = true;
if (!ESP32BLETracker::ble_setup()) {
this->mark_failed();
return;
}
global_esp32_ble_tracker->start_scan_(true);
if (this->scan_continuous_) {
global_esp32_ble_tracker->start_scan_(true);
}
}
void ESP32BLETracker::loop() {
@@ -68,14 +70,25 @@ void ESP32BLETracker::loop() {
ble_event = this->ble_events_.pop();
}
if (this->scanner_idle_) {
return;
}
bool connecting = false;
for (auto *client : this->clients_) {
if (client->state() == ClientState::CONNECTING || client->state() == ClientState::DISCOVERED)
connecting = true;
}
if (!connecting && xSemaphoreTake(this->scan_end_lock_, 0L)) {
xSemaphoreGive(this->scan_end_lock_);
global_esp32_ble_tracker->start_scan_(false);
if (this->scan_continuous_) {
global_esp32_ble_tracker->start_scan_(false);
} else if (xSemaphoreTake(this->scan_end_lock_, 0L) && !this->scanner_idle_) {
xSemaphoreGive(this->scan_end_lock_);
global_esp32_ble_tracker->end_of_scan_();
return;
}
}
if (xSemaphoreTake(this->scan_result_lock_, 5L / portTICK_PERIOD_MS)) {
@@ -134,6 +147,15 @@ void ESP32BLETracker::loop() {
}
}
void ESP32BLETracker::start_scan() {
if (xSemaphoreTake(this->scan_end_lock_, 0L)) {
xSemaphoreGive(this->scan_end_lock_);
global_esp32_ble_tracker->start_scan_(true);
} else {
ESP_LOGW(TAG, "Scan requested when a scan is already in progress. Ignoring.");
}
}
bool ESP32BLETracker::ble_setup() {
// Initialize non-volatile storage for the bluetooth controller
esp_err_t err = nvs_flash_init();
@@ -225,6 +247,7 @@ void ESP32BLETracker::start_scan_(bool first) {
listener->on_scan_end();
}
this->already_discovered_.clear();
this->scanner_idle_ = false;
this->scan_params_.scan_type = this->scan_active_ ? BLE_SCAN_TYPE_ACTIVE : BLE_SCAN_TYPE_PASSIVE;
this->scan_params_.own_addr_type = BLE_ADDR_TYPE_PUBLIC;
this->scan_params_.scan_filter_policy = BLE_SCAN_FILTER_ALLOW_ALL;
@@ -240,6 +263,22 @@ void ESP32BLETracker::start_scan_(bool first) {
});
}
void ESP32BLETracker::end_of_scan_() {
if (!xSemaphoreTake(this->scan_end_lock_, 0L)) {
ESP_LOGW(TAG, "Cannot clean up end of scan!");
return;
}
ESP_LOGD(TAG, "End of scan.");
this->scanner_idle_ = true;
this->already_discovered_.clear();
xSemaphoreGive(this->scan_end_lock_);
this->cancel_timeout("scan");
for (auto *listener : this->listeners_)
listener->on_scan_end();
}
void ESP32BLETracker::register_client(ESPBTClient *client) {
client->app_id = ++this->app_id_;
this->clients_.push_back(client);
@@ -719,7 +758,9 @@ void ESP32BLETracker::dump_config() {
ESP_LOGCONFIG(TAG, " Scan Interval: %.1f ms", this->scan_interval_ * 0.625f);
ESP_LOGCONFIG(TAG, " Scan Window: %.1f ms", this->scan_window_ * 0.625f);
ESP_LOGCONFIG(TAG, " Scan Type: %s", this->scan_active_ ? "ACTIVE" : "PASSIVE");
ESP_LOGCONFIG(TAG, " Continuous Scanning: %s", this->scan_continuous_ ? "True" : "False");
}
void ESP32BLETracker::print_bt_device_info(const ESPBTDevice &device) {
const uint64_t address = device.address_uint64();
for (auto &disc : this->already_discovered_) {