wifi: Move legacy HAL implementation

Changes in the CL:
1. Move the legacy HAL implementation from
"frameworks/opt/net/wifi/wifi_hal_legacy" to
"hardware/interfaces/wifi/1.0/default".
2. Renamed the .rc file and the module name in makefile to
conform to the HIDL style guide.

Files renamed from:
wifi_hal_service.cpp/h -> wifi.cpp/h
wifi_chip_service.cpp/h -> wifi_chip.cpp/h
main.cpp -> service

Bug: 31821133
Test: mmma -j32 hardware/interfaces/wifi/1.0/default
Change-Id: I5e65e2fdb5596346bde6963588031dcea42d633a
diff --git a/wifi/1.0/default/wifi_chip.h b/wifi/1.0/default/wifi_chip.h
new file mode 100644
index 0000000..583c151
--- /dev/null
+++ b/wifi/1.0/default/wifi_chip.h
@@ -0,0 +1,66 @@
+/*
+ * 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_CHIP_H_
+#define WIFI_CHIP_H_
+
+#include <set>
+
+#include <android/hardware/wifi/1.0/IWifiChip.h>
+#include <android-base/macros.h>
+#include <hardware_legacy/wifi_hal.h>
+
+#include "wifi_hal_state.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+
+class WifiChip : public V1_0::IWifiChip {
+ public:
+  WifiChip(
+      WifiHalState* hal_state, wifi_interface_handle interface_handle);
+
+  void Invalidate();
+
+  Return<void> registerEventCallback(
+      const sp<V1_0::IWifiChipEventCallback>& callback) override;
+
+  Return<void> getAvailableModes(getAvailableModes_cb cb) override;
+
+  Return<void> configureChip(uint32_t mode_id) override;
+
+  Return<uint32_t> getMode() override;
+
+  Return<void> requestChipDebugInfo() override;
+
+  Return<void> requestDriverDebugDump() override;
+
+  Return<void> requestFirmwareDebugDump() override;
+
+ private:
+  WifiHalState* hal_state_;
+  wifi_interface_handle interface_handle_;
+  std::set<sp<V1_0::IWifiChipEventCallback>> callbacks_;
+
+  DISALLOW_COPY_AND_ASSIGN(WifiChip);
+};
+
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // WIFI_CHIP_H_