wifi: Add support for RSSI monitoring
Bug: 31991459
Test: Compiles
Change-Id: I8794cea12a0d1c727bd0e37123152c8da11eeabf
diff --git a/wifi/1.0/default/wifi_legacy_hal.cpp b/wifi/1.0/default/wifi_legacy_hal.cpp
index de1eb39..640a2f2 100644
--- a/wifi/1.0/default/wifi_legacy_hal.cpp
+++ b/wifi/1.0/default/wifi_legacy_hal.cpp
@@ -90,16 +90,25 @@
// Callback to be invoked for link layer stats results.
std::function<void((wifi_request_id, wifi_iface_stat*, int, wifi_radio_stat*))>
on_link_layer_stats_result_internal_callback;
-void onLinkLayerStatsDataResult(wifi_request_id id,
- wifi_iface_stat* iface_stat,
- int num_radios,
- wifi_radio_stat* radio_stat) {
+void onLinkLayerStatsResult(wifi_request_id id,
+ wifi_iface_stat* iface_stat,
+ int num_radios,
+ wifi_radio_stat* radio_stat) {
if (on_link_layer_stats_result_internal_callback) {
on_link_layer_stats_result_internal_callback(
id, iface_stat, num_radios, radio_stat);
}
}
+// Callback to be invoked for rssi threshold breach.
+std::function<void((wifi_request_id, uint8_t*, int8_t))>
+ on_rssi_threshold_breached_internal_callback;
+void onRssiThresholdBreached(wifi_request_id id, uint8_t* bssid, int8_t rssi) {
+ if (on_rssi_threshold_breached_internal_callback) {
+ on_rssi_threshold_breached_internal_callback(id, bssid, rssi);
+ }
+}
+
// Callback to be invoked for ring buffer data indication.
std::function<void(char*, char*, int, wifi_ring_buffer_status*)>
on_ring_buffer_data_internal_callback;
@@ -537,11 +546,53 @@
};
wifi_error status = global_func_table_.wifi_get_link_stats(
- 0, wlan_interface_handle_, {onLinkLayerStatsDataResult});
+ 0, wlan_interface_handle_, {onLinkLayerStatsResult});
on_link_layer_stats_result_internal_callback = nullptr;
return {status, link_stats};
}
+wifi_error WifiLegacyHal::startRssiMonitoring(
+ wifi_request_id id,
+ int8_t max_rssi,
+ int8_t min_rssi,
+ const on_rssi_threshold_breached_callback&
+ on_threshold_breached_user_callback) {
+ if (on_rssi_threshold_breached_internal_callback) {
+ return WIFI_ERROR_NOT_AVAILABLE;
+ }
+ on_rssi_threshold_breached_internal_callback =
+ [on_threshold_breached_user_callback](
+ wifi_request_id id, uint8_t* bssid_ptr, int8_t rssi) {
+ if (!bssid_ptr) {
+ return;
+ }
+ std::array<uint8_t, 6> bssid_arr;
+ // |bssid_ptr| pointer is assumed to have 6 bytes for the mac address.
+ std::copy(bssid_ptr, bssid_ptr + 6, std::begin(bssid_arr));
+ on_threshold_breached_user_callback(id, bssid_arr, rssi);
+ };
+ return global_func_table_.wifi_start_rssi_monitoring(
+ id,
+ wlan_interface_handle_,
+ max_rssi,
+ min_rssi,
+ {onRssiThresholdBreached});
+}
+
+wifi_error WifiLegacyHal::stopRssiMonitoring(wifi_request_id id) {
+ if (!on_rssi_threshold_breached_internal_callback) {
+ return WIFI_ERROR_NOT_AVAILABLE;
+ }
+ wifi_error status =
+ global_func_table_.wifi_stop_rssi_monitoring(id, wlan_interface_handle_);
+ // If the request Id is wrong, don't stop the ongoing rssi monitoring. Any
+ // other error should be treated as the end of background scan.
+ if (status != WIFI_ERROR_INVALID_REQUEST_ID) {
+ on_rssi_threshold_breached_internal_callback = nullptr;
+ }
+ return status;
+}
+
std::pair<wifi_error, uint32_t> WifiLegacyHal::getLoggerSupportedFeatureSet() {
uint32_t supported_features;
wifi_error status = global_func_table_.wifi_get_logger_supported_feature_set(
@@ -1017,6 +1068,7 @@
on_gscan_event_internal_callback = nullptr;
on_gscan_full_result_internal_callback = nullptr;
on_link_layer_stats_result_internal_callback = nullptr;
+ on_rssi_threshold_breached_internal_callback = nullptr;
on_ring_buffer_data_internal_callback = nullptr;
on_rtt_results_internal_callback = nullptr;
on_nan_notify_response_user_callback = nullptr;