wifi: Add firmware mode controller
This module will make the necessary calls to reconfigure the
driver/firmware in the required state.
The module assumes that the sysfs paths needed to be accessed has been
chowned to "wifi" at bootup in the device's .rc file.
Bug: 32018162
Test: Compiles
Change-Id: I827c5eb6b5b4a3810e912d4164dbc8ff0ef4d30c
diff --git a/wifi/1.0/default/wifi_mode_controller.h b/wifi/1.0/default/wifi_mode_controller.h
new file mode 100644
index 0000000..a4147a9
--- /dev/null
+++ b/wifi/1.0/default/wifi_mode_controller.h
@@ -0,0 +1,59 @@
+/*
+ * 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.
+ */
+
+#ifndef WIFI_MODE_CONTROLLER_H_
+#define WIFI_MODE_CONTROLLER_H_
+
+#include <wifi_hal/driver_tool.h>
+
+#include <android/hardware/wifi/1.0/IWifi.h>
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_0 {
+namespace implementation {
+namespace mode_controller {
+/**
+ * Class that encapsulates all firmware mode configuration.
+ * This class will perform the necessary firmware reloads to put the chip in the
+ * required state (essentially a wrapper over DriverTool).
+ */
+class WifiModeController {
+ public:
+ WifiModeController();
+
+ // Checks if a firmware mode change is necessary to support the specified
+ // iface type operations.
+ bool isFirmwareModeChangeNeeded(IfaceType type);
+ // Change the firmware mode to support the specified iface type operations.
+ bool changeFirmwareMode(IfaceType type);
+ // Unload the driver. This should be invoked whenever |IWifi.stop()| is
+ // invoked.
+ bool deinitialize();
+
+ private:
+ std::unique_ptr<wifi_hal::DriverTool> driver_tool_;
+};
+
+} // namespace mode_controller
+} // namespace implementation
+} // namespace V1_0
+} // namespace wifi
+} // namespace hardware
+} // namespace android
+
+#endif // WIFI_MODE_CONTROLLER_H_