wifi: Add RTT API wrappers in WifiLegacyHal
These are just wrapper methods over the legacy RTT related HAL API's.
Note: Some of the RTT related API's have been intentionally left off
because they're no longer used.
Bug: 31991232
Test: Compiles
Change-Id: Ied19d9ec1d4347ead0c40ab3683a1a0bae704f90
diff --git a/wifi/1.0/default/wifi_legacy_hal.cpp b/wifi/1.0/default/wifi_legacy_hal.cpp
index 135e2c5..46482aa 100644
--- a/wifi/1.0/default/wifi_legacy_hal.cpp
+++ b/wifi/1.0/default/wifi_legacy_hal.cpp
@@ -112,6 +112,18 @@
}
}
+// Callback to be invoked for rtt results results.
+std::function<void(
+ wifi_request_id, unsigned num_results, wifi_rtt_result* rtt_results[])>
+ on_rtt_results_internal_callback;
+void onRttResults(wifi_request_id id,
+ unsigned num_results,
+ wifi_rtt_result* rtt_results[]) {
+ if (on_rtt_results_internal_callback) {
+ on_rtt_results_internal_callback(id, num_results, rtt_results);
+ }
+}
+
// End of the free-standing "C" style callbacks.
WifiLegacyHal::WifiLegacyHal()
@@ -549,6 +561,108 @@
ring_name_internal.data());
}
+wifi_error WifiLegacyHal::startRttRangeRequest(
+ wifi_request_id id,
+ const std::vector<wifi_rtt_config>& rtt_configs,
+ const on_rtt_results_callback& on_results_user_callback) {
+ if (on_rtt_results_internal_callback) {
+ return WIFI_ERROR_NOT_AVAILABLE;
+ }
+
+ on_rtt_results_internal_callback = [on_results_user_callback](
+ wifi_request_id id,
+ unsigned num_results,
+ wifi_rtt_result* rtt_results[]) {
+ if (num_results > 0 && !rtt_results) {
+ LOG(ERROR) << "Unexpected nullptr in RTT results";
+ return;
+ }
+ std::vector<const wifi_rtt_result*> rtt_results_vec;
+ std::copy_if(
+ rtt_results,
+ rtt_results + num_results,
+ back_inserter(rtt_results_vec),
+ [](wifi_rtt_result* rtt_result) { return rtt_result != nullptr; });
+ on_results_user_callback(id, rtt_results_vec);
+ };
+
+ std::vector<wifi_rtt_config> rtt_configs_internal(rtt_configs);
+ return global_func_table_.wifi_rtt_range_request(id,
+ wlan_interface_handle_,
+ rtt_configs.size(),
+ rtt_configs_internal.data(),
+ {onRttResults});
+}
+
+wifi_error WifiLegacyHal::cancelRttRangeRequest(
+ wifi_request_id id, const std::vector<std::array<uint8_t, 6>>& mac_addrs) {
+ if (!on_rtt_results_internal_callback) {
+ return WIFI_ERROR_NOT_AVAILABLE;
+ }
+ static_assert(sizeof(mac_addr) == sizeof(std::array<uint8_t, 6>),
+ "MAC address size mismatch");
+ // TODO: How do we handle partial cancels (i.e only a subset of enabled mac
+ // addressed are cancelled).
+ std::vector<std::array<uint8_t, 6>> mac_addrs_internal(mac_addrs);
+ wifi_error status = global_func_table_.wifi_rtt_range_cancel(
+ id,
+ wlan_interface_handle_,
+ mac_addrs.size(),
+ reinterpret_cast<mac_addr*>(mac_addrs_internal.data()));
+ // If the request Id is wrong, don't stop the ongoing range request. Any
+ // other error should be treated as the end of rtt ranging.
+ if (status != WIFI_ERROR_INVALID_REQUEST_ID) {
+ on_rtt_results_internal_callback = nullptr;
+ }
+ return status;
+}
+
+std::pair<wifi_error, wifi_rtt_capabilities>
+WifiLegacyHal::getRttCapabilities() {
+ wifi_rtt_capabilities rtt_caps;
+ wifi_error status = global_func_table_.wifi_get_rtt_capabilities(
+ wlan_interface_handle_, &rtt_caps);
+ return {status, rtt_caps};
+}
+
+std::pair<wifi_error, wifi_rtt_responder> WifiLegacyHal::getRttResponderInfo() {
+ wifi_rtt_responder rtt_responder;
+ wifi_error status = global_func_table_.wifi_rtt_get_responder_info(
+ wlan_interface_handle_, &rtt_responder);
+ return {status, rtt_responder};
+}
+
+wifi_error WifiLegacyHal::enableRttResponder(
+ wifi_request_id id,
+ const wifi_channel_info& channel_hint,
+ uint32_t max_duration_secs,
+ const wifi_rtt_responder& info) {
+ wifi_rtt_responder info_internal(info);
+ return global_func_table_.wifi_enable_responder(id,
+ wlan_interface_handle_,
+ channel_hint,
+ max_duration_secs,
+ &info_internal);
+}
+
+wifi_error WifiLegacyHal::disableRttResponder(wifi_request_id id) {
+ return global_func_table_.wifi_disable_responder(id, wlan_interface_handle_);
+}
+
+wifi_error WifiLegacyHal::setRttLci(wifi_request_id id,
+ const wifi_lci_information& info) {
+ wifi_lci_information info_internal(info);
+ return global_func_table_.wifi_set_lci(
+ id, wlan_interface_handle_, &info_internal);
+}
+
+wifi_error WifiLegacyHal::setRttLcr(wifi_request_id id,
+ const wifi_lcr_information& info) {
+ wifi_lcr_information info_internal(info);
+ return global_func_table_.wifi_set_lcr(
+ id, wlan_interface_handle_, &info_internal);
+}
+
wifi_error WifiLegacyHal::retrieveWlanInterfaceHandle() {
const std::string& ifname_to_find = getStaIfaceName();
wifi_interface_handle* iface_handles = nullptr;
@@ -627,6 +741,7 @@
on_gscan_full_result_internal_callback = nullptr;
on_link_layer_stats_result_internal_callback = nullptr;
on_ring_buffer_data_internal_callback = nullptr;
+ on_rtt_results_internal_callback = nullptr;
}
} // namespace legacy_hal
diff --git a/wifi/1.0/default/wifi_legacy_hal.h b/wifi/1.0/default/wifi_legacy_hal.h
index 3dc98ad..0bb78b2 100644
--- a/wifi/1.0/default/wifi_legacy_hal.h
+++ b/wifi/1.0/default/wifi_legacy_hal.h
@@ -75,6 +75,13 @@
using on_gscan_results_callback = std::function<void(
wifi_request_id, const std::vector<wifi_cached_scan_results>&)>;
+// Callback for RTT range request results.
+// Rtt results contain IE info and are hence passed by reference, to
+// preserve the |LCI| and |LCR| pointers. Callee must not retain
+// the pointer.
+using on_rtt_results_callback = std::function<void(
+ wifi_request_id, const std::vector<const wifi_rtt_result*>&)>;
+
// Callback for ring buffer data.
using on_ring_buffer_data_callback =
std::function<void(const std::string&,
@@ -147,6 +154,22 @@
uint32_t max_interval_sec,
uint32_t min_data_size);
wifi_error getRingBufferData(const std::string& ring_name);
+ // RTT functions.
+ wifi_error startRttRangeRequest(
+ wifi_request_id id,
+ const std::vector<wifi_rtt_config>& rtt_configs,
+ const on_rtt_results_callback& on_results_callback);
+ wifi_error cancelRttRangeRequest(
+ wifi_request_id id, const std::vector<std::array<uint8_t, 6>>& mac_addrs);
+ std::pair<wifi_error, wifi_rtt_capabilities> getRttCapabilities();
+ std::pair<wifi_error, wifi_rtt_responder> getRttResponderInfo();
+ wifi_error enableRttResponder(wifi_request_id id,
+ const wifi_channel_info& channel_hint,
+ uint32_t max_duration_secs,
+ const wifi_rtt_responder& info);
+ wifi_error disableRttResponder(wifi_request_id id);
+ wifi_error setRttLci(wifi_request_id id, const wifi_lci_information& info);
+ wifi_error setRttLcr(wifi_request_id id, const wifi_lcr_information& info);
private:
// Retrieve the interface handle to be used for the "wlan" interface.