[WIFI][TREBLE] Uprev Wi-Fi HAL 1.2

In preparation for new feature development - uprev the Wi-Fi Treble HAL
revision from 1.1 to 1.2.

This CL does not contain any functional changes to the HAL itself. Only
updating the revision.

Bug: 65647646
Test: builds and Wi-Fi runs
Change-Id: I8e80e866562a508bf481104a3dbcf2bd8f8015b4
diff --git a/wifi/1.2/default/wifi_mode_controller.cpp b/wifi/1.2/default/wifi_mode_controller.cpp
new file mode 100644
index 0000000..6d184ca
--- /dev/null
+++ b/wifi/1.2/default/wifi_mode_controller.cpp
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android-base/logging.h>
+#include <android-base/macros.h>
+#include <private/android_filesystem_config.h>
+
+#include "wifi_mode_controller.h"
+
+using android::hardware::wifi::V1_0::IfaceType;
+using android::wifi_hal::DriverTool;
+
+namespace {
+int convertIfaceTypeToFirmwareMode(IfaceType type) {
+  int mode;
+  switch (type) {
+    case IfaceType::AP:
+      mode = DriverTool::kFirmwareModeAp;
+      break;
+    case IfaceType::P2P:
+      mode = DriverTool::kFirmwareModeP2p;
+      break;
+    case IfaceType::NAN:
+      // NAN is exposed in STA mode currently.
+      mode = DriverTool::kFirmwareModeSta;
+      break;
+    case IfaceType::STA:
+      mode = DriverTool::kFirmwareModeSta;
+      break;
+  }
+  return mode;
+}
+}
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_2 {
+namespace implementation {
+namespace mode_controller {
+
+WifiModeController::WifiModeController() : driver_tool_(new DriverTool) {}
+
+bool WifiModeController::isFirmwareModeChangeNeeded(IfaceType type) {
+  return driver_tool_->IsFirmwareModeChangeNeeded(
+      convertIfaceTypeToFirmwareMode(type));
+}
+
+bool WifiModeController::changeFirmwareMode(IfaceType type) {
+  if (!driver_tool_->LoadDriver()) {
+    LOG(ERROR) << "Failed to load WiFi driver";
+    return false;
+  }
+  if (!driver_tool_->ChangeFirmwareMode(convertIfaceTypeToFirmwareMode(type))) {
+    LOG(ERROR) << "Failed to change firmware mode";
+    return false;
+  }
+  return true;
+}
+
+bool WifiModeController::deinitialize() {
+  if (!driver_tool_->UnloadDriver()) {
+    LOG(ERROR) << "Failed to unload WiFi driver";
+    return false;
+  }
+  return true;
+}
+}  // namespace mode_controller
+}  // namespace implementation
+}  // namespace V1_2
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android