/*
 * 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_STA_IFACE_H_
#define WIFI_STA_IFACE_H_

#include <android-base/macros.h>
#include <android/hardware/wifi/1.0/IWifiStaIfaceEventCallback.h>
#include <android/hardware/wifi/1.3/IWifiStaIface.h>

#include "hidl_callback_util.h"
#include "wifi_iface_util.h"
#include "wifi_legacy_hal.h"

namespace android {
namespace hardware {
namespace wifi {
namespace V1_3 {
namespace implementation {
using namespace android::hardware::wifi::V1_0;

/**
 * HIDL interface object used to control a STA Iface instance.
 */
class WifiStaIface : public V1_3::IWifiStaIface {
   public:
    WifiStaIface(const std::string& ifname,
                 const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
                 const std::weak_ptr<iface_util::WifiIfaceUtil> iface_util);
    // Refer to |WifiChip::invalidate()|.
    void invalidate();
    bool isValid();
    std::set<sp<IWifiStaIfaceEventCallback>> getEventCallbacks();
    std::string getName();

    // HIDL methods exposed.
    Return<void> getName(getName_cb hidl_status_cb) override;
    Return<void> getType(getType_cb hidl_status_cb) override;
    Return<void> registerEventCallback(
        const sp<IWifiStaIfaceEventCallback>& callback,
        registerEventCallback_cb hidl_status_cb) override;
    Return<void> getCapabilities(getCapabilities_cb hidl_status_cb) override;
    Return<void> getApfPacketFilterCapabilities(
        getApfPacketFilterCapabilities_cb hidl_status_cb) override;
    Return<void> installApfPacketFilter(
        uint32_t cmd_id, const hidl_vec<uint8_t>& program,
        installApfPacketFilter_cb hidl_status_cb) override;
    Return<void> readApfPacketFilterData(
        readApfPacketFilterData_cb hidl_status_cb) override;
    Return<void> getBackgroundScanCapabilities(
        getBackgroundScanCapabilities_cb hidl_status_cb) override;
    Return<void> getValidFrequenciesForBand(
        WifiBand band, getValidFrequenciesForBand_cb hidl_status_cb) override;
    Return<void> startBackgroundScan(
        uint32_t cmd_id, const StaBackgroundScanParameters& params,
        startBackgroundScan_cb hidl_status_cb) override;
    Return<void> stopBackgroundScan(
        uint32_t cmd_id, stopBackgroundScan_cb hidl_status_cb) override;
    Return<void> enableLinkLayerStatsCollection(
        bool debug, enableLinkLayerStatsCollection_cb hidl_status_cb) override;
    Return<void> disableLinkLayerStatsCollection(
        disableLinkLayerStatsCollection_cb hidl_status_cb) override;
    Return<void> getLinkLayerStats(
        getLinkLayerStats_cb hidl_status_cb) override;
    Return<void> getLinkLayerStats_1_3(
        getLinkLayerStats_1_3_cb hidl_status_cb) override;
    Return<void> startRssiMonitoring(
        uint32_t cmd_id, int32_t max_rssi, int32_t min_rssi,
        startRssiMonitoring_cb hidl_status_cb) override;
    Return<void> stopRssiMonitoring(
        uint32_t cmd_id, stopRssiMonitoring_cb hidl_status_cb) override;
    Return<void> getRoamingCapabilities(
        getRoamingCapabilities_cb hidl_status_cb) override;
    Return<void> configureRoaming(const StaRoamingConfig& config,
                                  configureRoaming_cb hidl_status_cb) override;
    Return<void> setRoamingState(StaRoamingState state,
                                 setRoamingState_cb hidl_status_cb) override;
    Return<void> enableNdOffload(bool enable,
                                 enableNdOffload_cb hidl_status_cb) override;
    Return<void> startSendingKeepAlivePackets(
        uint32_t cmd_id, const hidl_vec<uint8_t>& ip_packet_data,
        uint16_t ether_type, const hidl_array<uint8_t, 6>& src_address,
        const hidl_array<uint8_t, 6>& dst_address, uint32_t period_in_ms,
        startSendingKeepAlivePackets_cb hidl_status_cb) override;
    Return<void> stopSendingKeepAlivePackets(
        uint32_t cmd_id,
        stopSendingKeepAlivePackets_cb hidl_status_cb) override;
    Return<void> setScanningMacOui(
        const hidl_array<uint8_t, 3>& oui,
        setScanningMacOui_cb hidl_status_cb) override;
    Return<void> startDebugPacketFateMonitoring(
        startDebugPacketFateMonitoring_cb hidl_status_cb) override;
    Return<void> getDebugTxPacketFates(
        getDebugTxPacketFates_cb hidl_status_cb) override;
    Return<void> getDebugRxPacketFates(
        getDebugRxPacketFates_cb hidl_status_cb) override;
    Return<void> setMacAddress(const hidl_array<uint8_t, 6>& mac,
                               setMacAddress_cb hidl_status_cb) override;
    Return<void> getFactoryMacAddress(
        getFactoryMacAddress_cb hidl_status_cb) override;

   private:
    // Corresponding worker functions for the HIDL methods.
    std::pair<WifiStatus, std::string> getNameInternal();
    std::pair<WifiStatus, IfaceType> getTypeInternal();
    WifiStatus registerEventCallbackInternal(
        const sp<IWifiStaIfaceEventCallback>& callback);
    std::pair<WifiStatus, uint32_t> getCapabilitiesInternal();
    std::pair<WifiStatus, StaApfPacketFilterCapabilities>
    getApfPacketFilterCapabilitiesInternal();
    WifiStatus installApfPacketFilterInternal(
        uint32_t cmd_id, const std::vector<uint8_t>& program);
    std::pair<WifiStatus, std::vector<uint8_t>>
    readApfPacketFilterDataInternal();
    std::pair<WifiStatus, StaBackgroundScanCapabilities>
    getBackgroundScanCapabilitiesInternal();
    std::pair<WifiStatus, std::vector<WifiChannelInMhz>>
    getValidFrequenciesForBandInternal(WifiBand band);
    WifiStatus startBackgroundScanInternal(
        uint32_t cmd_id, const StaBackgroundScanParameters& params);
    WifiStatus stopBackgroundScanInternal(uint32_t cmd_id);
    WifiStatus enableLinkLayerStatsCollectionInternal(bool debug);
    WifiStatus disableLinkLayerStatsCollectionInternal();
    std::pair<WifiStatus, V1_0::StaLinkLayerStats> getLinkLayerStatsInternal();
    std::pair<WifiStatus, V1_3::StaLinkLayerStats>
    getLinkLayerStatsInternal_1_3();
    WifiStatus startRssiMonitoringInternal(uint32_t cmd_id, int32_t max_rssi,
                                           int32_t min_rssi);
    WifiStatus stopRssiMonitoringInternal(uint32_t cmd_id);
    std::pair<WifiStatus, StaRoamingCapabilities>
    getRoamingCapabilitiesInternal();
    WifiStatus configureRoamingInternal(const StaRoamingConfig& config);
    WifiStatus setRoamingStateInternal(StaRoamingState state);
    WifiStatus enableNdOffloadInternal(bool enable);
    WifiStatus startSendingKeepAlivePacketsInternal(
        uint32_t cmd_id, const std::vector<uint8_t>& ip_packet_data,
        uint16_t ether_type, const std::array<uint8_t, 6>& src_address,
        const std::array<uint8_t, 6>& dst_address, uint32_t period_in_ms);
    WifiStatus stopSendingKeepAlivePacketsInternal(uint32_t cmd_id);
    WifiStatus setScanningMacOuiInternal(const std::array<uint8_t, 3>& oui);
    WifiStatus startDebugPacketFateMonitoringInternal();
    std::pair<WifiStatus, std::vector<WifiDebugTxPacketFateReport>>
    getDebugTxPacketFatesInternal();
    std::pair<WifiStatus, std::vector<WifiDebugRxPacketFateReport>>
    getDebugRxPacketFatesInternal();
    WifiStatus setMacAddressInternal(const std::array<uint8_t, 6>& mac);
    std::pair<WifiStatus, std::array<uint8_t, 6>>
    getFactoryMacAddressInternal();

    std::string ifname_;
    std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
    std::weak_ptr<iface_util::WifiIfaceUtil> iface_util_;
    bool is_valid_;
    hidl_callback_util::HidlCallbackHandler<IWifiStaIfaceEventCallback>
        event_cb_handler_;

    DISALLOW_COPY_AND_ASSIGN(WifiStaIface);
};

}  // namespace implementation
}  // namespace V1_3
}  // namespace wifi
}  // namespace hardware
}  // namespace android

#endif  // WIFI_STA_IFACE_H_