wifi: Split out initialize and start in WifiLegacyHal am: 97334114c6 (22150049) · Commits · e / os / android_hardware_interfaces

wifi/1.0/default/wifi_legacy_hal.cpp

+14 −13

Original line number	Diff line number	Diff line
		@@ -18,10 +18,11 @@

		#include <android-base/logging.h>
		#include <cutils/properties.h>
		#include <wifi_system/interface_tool.h>

		#include "wifi_legacy_hal.h"

		using android::wifi_system::InterfaceTool;

		namespace android {
		namespace hardware {
		namespace wifi {
		@@ -241,12 +242,7 @@ WifiLegacyHal::WifiLegacyHal()
		wlan_interface_handle_(nullptr),
		awaiting_event_loop_termination_(false) {}

		wifi_error WifiLegacyHal::start() {
		// Ensure that we're starting in a good state.
		CHECK(!global_handle_ && !wlan_interface_handle_ &&
		!awaiting_event_loop_termination_);

		android::wifi_system::InterfaceTool if_tool;
		wifi_error WifiLegacyHal::initialize() {
		// TODO: Add back the HAL Tool if we need to. All we need from the HAL tool
		// for now is this function call which we can directly call.
		wifi_error status = init_wifi_vendor_hal_func_table(&global_func_table_);
		@@ -254,13 +250,19 @@ wifi_error WifiLegacyHal::start() {
		LOG(ERROR) << "Failed to initialize legacy hal function table";
		return WIFI_ERROR_UNKNOWN;
		}
		if (!if_tool.SetWifiUpState(true)) {
		return WIFI_SUCCESS;
		}

		wifi_error WifiLegacyHal::start() {
		// Ensure that we're starting in a good state.
		CHECK(global_func_table_.wifi_initialize && !global_handle_ &&
		!wlan_interface_handle_ && !awaiting_event_loop_termination_);
		if (!iface_tool_.SetWifiUpState(true)) {
		LOG(ERROR) << "Failed to set WiFi interface up";
		return WIFI_ERROR_UNKNOWN;
		}

		LOG(INFO) << "Starting legacy HAL";
		status = global_func_table_.wifi_initialize(&global_handle_);
		wifi_error status = global_func_table_.wifi_initialize(&global_handle_);
		if (status != WIFI_SUCCESS \|\| !global_handle_) {
		LOG(ERROR) << "Failed to retrieve global handle";
		return status;
		@@ -280,10 +282,11 @@ wifi_error WifiLegacyHal::stop(
		LOG(INFO) << "Stopping legacy HAL";
		on_stop_complete_internal_callback = [&](wifi_handle handle) {
		CHECK_EQ(global_handle_, handle) << "Handle mismatch";
		on_stop_complete_user_callback();
		// Invalidate all the internal pointers now that the HAL is
		// stopped.
		invalidate();
		iface_tool_.SetWifiUpState(false);
		on_stop_complete_user_callback();
		};
		awaiting_event_loop_termination_ = true;
		global_func_table_.wifi_cleanup(global_handle_, onStopComplete);
		@@ -974,8 +977,6 @@ void WifiLegacyHal::runEventLoop() {
		}
		LOG(VERBOSE) << "Legacy HAL event loop terminated";
		awaiting_event_loop_termination_ = false;
		android::wifi_system::InterfaceTool if_tool;
		if_tool.SetWifiUpState(false);
		}

		std::pair<wifi_error, std::vector<wifi_cached_scan_results>>

wifi/1.0/default/wifi_legacy_hal.h

+6 −1

Original line number	Diff line number	Diff line
		@@ -21,6 +21,8 @@
		#include <thread>
		#include <vector>

		#include <wifi_system/interface_tool.h>

		namespace android {
		namespace hardware {
		namespace wifi {
		@@ -125,7 +127,9 @@ class WifiLegacyHal {
		std::string getP2pIfaceName();
		std::string getStaIfaceName();

		// Initialize the legacy HAL and start the event looper thread.
		// Initialize the legacy HAL function table.
		wifi_error initialize();
		// Start the legacy HAL and the event looper thread.
		wifi_error start();
		// Deinitialize the legacy HAL and stop the event looper thread.
		wifi_error stop(const std::function<void()>& on_complete_callback);
		@@ -245,6 +249,7 @@ class WifiLegacyHal {
		wifi_interface_handle wlan_interface_handle_;
		// Flag to indicate if we have initiated the cleanup of legacy HAL.
		bool awaiting_event_loop_termination_;
		wifi_system::InterfaceTool iface_tool_;
		};

		} // namespace legacy_hal