Merge changes from topic 'fix_configure_chip' into oc-dev
am: 5eca115b68

Change-Id: Ice788fc3d3c9226fa47df0b598927ea4a349332e
diff --git a/current.txt b/current.txt
index 2cecd47..72266f3 100644
--- a/current.txt
+++ b/current.txt
@@ -161,7 +161,7 @@
 4b962968a7df4ab104d1315d66a0a7348a713fecbb5d2c1b23688494458f37ce android.hardware.vr@1.0::IVr
 b9be36719a8ad534000a51ea07be91be94c405bf1e038ae825acf65087ffd378 android.hardware.wifi@1.0::IWifi
 ee0224ee18813506d9d6f13d8c8e4679f053c290a443a52a7c52a5d3c852262b android.hardware.wifi@1.0::IWifiApIface
-50390d78cb83c9912235e17f25255a19429b5e7094c8980bea28623873ce5e3d android.hardware.wifi@1.0::IWifiChip
+f3eecc489deb4c74892f59eb7adb769063bd5c354ac132b626a5f42b363d36bc android.hardware.wifi@1.0::IWifiChip
 a1b988377645a58e5e2542ca2bad4e17c21a4a389213d05de2f0e32d57b7d339 android.hardware.wifi@1.0::IWifiChipEventCallback
 5ed6760ce77e84bc6c49d1acb3f7d8117c9176b3f06514bc44ad3af84c80dcfe android.hardware.wifi@1.0::IWifiEventCallback
 6b9ad43a5efbe6ca214f751e22ce43cf5cd4d5d5f2cba80f24ccd3755a72401c android.hardware.wifi@1.0::IWifiIface
diff --git a/wifi/1.0/IWifiChip.hal b/wifi/1.0/IWifiChip.hal
index 611c449..b97327c 100644
--- a/wifi/1.0/IWifiChip.hal
+++ b/wifi/1.0/IWifiChip.hal
@@ -220,7 +220,12 @@
   getAvailableModes() generates (WifiStatus status, vec<ChipMode> modes);
 
   /**
-   * Reconfigure the Chip.
+   * Configure the Chip.
+   * This may NOT be called to reconfigure a chip due to an internal
+   * limitation. Calling this when chip is already configured in a different
+   * mode must trigger an ERROR_NOT_SUPPORTED failure.
+   * If you want to do reconfiguration, please call IWifi.stop() and IWifi.start()
+   * to restart Wifi HAL before calling this.
    * Any existing |IWifiIface| objects must be marked invalid after this call.
    * If this fails then the chips is now in an undefined state and
    * configureChip must be called again.
@@ -234,6 +239,7 @@
    *         |WifiStatusCode.SUCCESS|,
    *         |WifiStatusCode.ERROR_WIFI_CHIP_INVALID|,
    *         |WifiStatusCode.ERROR_NOT_AVAILABLE|,
+   *         |WifiStatusCode.ERROR_NOT_SUPPORTED|,
    *         |WifiStatusCode.ERROR_UNKNOWN|
    */
   configureChip(ChipModeId modeId) generates (WifiStatus status);
diff --git a/wifi/1.0/default/wifi_chip.cpp b/wifi/1.0/default/wifi_chip.cpp
index 319e126..770c83f 100644
--- a/wifi/1.0/default/wifi_chip.cpp
+++ b/wifi/1.0/default/wifi_chip.cpp
@@ -804,14 +804,12 @@
 WifiStatus WifiChip::handleChipConfiguration(ChipModeId mode_id) {
   // If the chip is already configured in a different mode, stop
   // the legacy HAL and then start it after firmware mode change.
+  // Currently the underlying implementation has a deadlock issue.
+  // We should return ERROR_NOT_SUPPORTED if chip is already configured in
+  // a different mode.
   if (current_mode_id_ != kInvalidModeId) {
-    invalidateAndRemoveAllIfaces();
-    legacy_hal::wifi_error legacy_status = legacy_hal_.lock()->stop([]() {});
-    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
-      LOG(ERROR) << "Failed to stop legacy HAL: "
-                 << legacyErrorToString(legacy_status);
-      return createWifiStatusFromLegacyError(legacy_status);
-    }
+    // TODO(b/37446050): Fix the deadlock.
+    return createWifiStatus(WifiStatusCode::ERROR_NOT_SUPPORTED);
   }
   bool success;
   if (mode_id == kStaChipModeId) {
diff --git a/wifi/1.0/vts/functional/wifi_chip_hidl_test.cpp b/wifi/1.0/vts/functional/wifi_chip_hidl_test.cpp
index 0627a99..6c2372f 100644
--- a/wifi/1.0/vts/functional/wifi_chip_hidl_test.cpp
+++ b/wifi/1.0/vts/functional/wifi_chip_hidl_test.cpp
@@ -173,8 +173,12 @@
     EXPECT_EQ(WifiStatusCode::SUCCESS, status_and_modes.first.code);
     EXPECT_LT(0u, status_and_modes.second.size());
     for (const auto& mode : status_and_modes.second) {
+        // configureChip() requires to be called with a fresh IWifiChip object.
+        wifi_chip_ = getWifiChip();
+        ASSERT_NE(nullptr, wifi_chip_.get());
         EXPECT_EQ(WifiStatusCode::SUCCESS,
                   HIDL_INVOKE(wifi_chip_, configureChip, mode.id).code);
+        stopWifi();
     }
 }