In supplicant VTS test setup, make sure that the

wifi hal is stopped before starting wifi.

Bug: 234853504
Test: atest VtsHalWifiSupplicantV1_0TargetTest # HIDL service
Change-Id: I413c3803a6607a72cc3aa8a5fa208551be1b1032

wifi/supplicant/1.0/vts/functional/supplicant_hidl_test.cpp

@@ -38,11 +38,12 @@ class SupplicantHidlTest
     : public ::testing::TestWithParam<std::tuple<std::string, std::string>> {
    public:
     virtual void SetUp() override {
-        // Stop Wi-Fi
-        ASSERT_TRUE(stopWifiFramework());  // stop & wait for wifi to shutdown.
-
         wifi_instance_name_ = std::get<0>(GetParam());
         supplicant_instance_name_ = std::get<1>(GetParam());
+
+        // Stop & wait for wifi to shutdown.
+        ASSERT_TRUE(stopWifiFramework(wifi_instance_name_));
+
         std::system("/system/bin/start");
         ASSERT_TRUE(waitForFrameworkReady());
         isP2pOn_ =

wifi/supplicant/1.0/vts/functional/supplicant_hidl_test_utils.cpp

@@ -28,26 +28,42 @@
 
 using ::android::sp;
 using ::android::hardware::configureRpcThreadpool;
-using ::android::hardware::joinRpcThreadpool;
 using ::android::hardware::hidl_string;
 using ::android::hardware::hidl_vec;
+using ::android::hardware::joinRpcThreadpool;
 using ::android::hardware::Return;
 using ::android::hardware::Void;
-using ::android::hardware::wifi::V1_0::ChipModeId;
+using ::android::hardware::wifi::supplicant::V1_0::IfaceType;
-using ::android::hardware::wifi::V1_0::IWifiChip;
 using ::android::hardware::wifi::supplicant::V1_0::ISupplicant;
 using ::android::hardware::wifi::supplicant::V1_0::ISupplicantIface;
 using ::android::hardware::wifi::supplicant::V1_0::ISupplicantNetwork;
+using ::android::hardware::wifi::supplicant::V1_0::ISupplicantP2pIface;
 using ::android::hardware::wifi::supplicant::V1_0::ISupplicantStaIface;
 using ::android::hardware::wifi::supplicant::V1_0::ISupplicantStaNetwork;
-using ::android::hardware::wifi::supplicant::V1_0::ISupplicantP2pIface;
-using ::android::hardware::wifi::supplicant::V1_0::IfaceType;
 using ::android::hardware::wifi::supplicant::V1_0::SupplicantStatus;
 using ::android::hardware::wifi::supplicant::V1_0::SupplicantStatusCode;
+using ::android::hardware::wifi::V1_0::ChipModeId;
+using ::android::hardware::wifi::V1_0::IWifi;
+using ::android::hardware::wifi::V1_0::IWifiChip;
 using ::android::wifi_system::InterfaceTool;
 using ::android::wifi_system::SupplicantManager;
 
 namespace {
+
+bool waitForWifiHalStop(const std::string& wifi_instance_name) {
+    sp<IWifi> wifi = getWifi(wifi_instance_name);
+    int count = 50; /* wait at most 5 seconds for completion */
+    while (count-- > 0) {
+        if (wifi != nullptr && !wifi->isStarted()) {
+            return true;
+        }
+        usleep(100000);
+        wifi = getWifi(wifi_instance_name);
+    }
+    LOG(ERROR) << "Wifi HAL was not stopped";
+    return false;
+}
+
 bool waitForSupplicantState(bool is_running) {
     SupplicantManager supplicant_manager;
     int count = 50; /* wait at most 5 seconds for completion */
@@ -113,10 +129,10 @@ bool startWifiFramework() {
     return waitForSupplicantStart();  // wait for wifi to start.
 }
 
-bool stopWifiFramework() {
+bool stopWifiFramework(const std::string& wifi_instance_name) {
     std::system("svc wifi disable");
     std::system("cmd wifi set-scan-always-available disabled");
-    return waitForSupplicantStop();  // wait for wifi to shutdown.
+    return waitForSupplicantStop() && waitForWifiHalStop(wifi_instance_name);
 }
 
 void stopSupplicant() { stopSupplicant(""); }

wifi/supplicant/1.0/vts/functional/supplicant_hidl_test_utils.h

@@ -33,7 +33,7 @@
 bool startWifiFramework();
 
 // Used to stop the android wifi framework before every test.
-bool stopWifiFramework();
+bool stopWifiFramework(const std::string& wifi_instance_name);
 
 void stopSupplicant(const std::string& wifi_instance_name);
 // Used to configure the chip, driver and start wpa_supplicant before every
@@ -77,12 +77,13 @@ class SupplicantHidlTestBase
     : public ::testing::TestWithParam<std::tuple<std::string, std::string>> {
    public:
     virtual void SetUp() override {
-        // Stop Wi-Fi
+        wifi_v1_0_instance_name_ =
-        ASSERT_TRUE(stopWifiFramework());  // stop & wait for wifi to shutdown.
+            std::get<0>(GetParam());  // should always be v1.0 wifi
-
-        // should always be v1.0 wifi
-        wifi_v1_0_instance_name_ = std::get<0>(GetParam());
         supplicant_instance_name_ = std::get<1>(GetParam());
+
+        // Stop & wait for wifi to shutdown.
+        ASSERT_TRUE(stopWifiFramework(wifi_v1_0_instance_name_));
+
         std::system("/system/bin/start");
         ASSERT_TRUE(waitForFrameworkReady());
         isP2pOn_ =