Return ERROR_NOT_SUPPORTED when configureChip() is used for reconfiguration
Bug: 36562856
Bug: 37446050
Test: compile, VTS test fail as expected
Change-Id: I895dd0d6e96b0d0a2b429c3a68be1f7c7e32a7e3
diff --git a/current.txt b/current.txt
index 575e8fa..750ea6f 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) {