7cf1df7ce1
|chip_| could be null if wifi is not turned on. Bug: 72470346 Test: Ensure that the device does not crash when bugreport is collected with wifi off. Change-Id: Iface5ecf0511ad88996ebad85ba3c037c3a8c5ee
212 lines
7.7 KiB
C++
212 lines
7.7 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <android-base/logging.h>
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#include "hidl_return_util.h"
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#include "wifi.h"
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#include "wifi_status_util.h"
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namespace {
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// Chip ID to use for the only supported chip.
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static constexpr android::hardware::wifi::V1_0::ChipId kChipId = 0;
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} // namespace
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namespace android {
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namespace hardware {
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namespace wifi {
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namespace V1_2 {
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namespace implementation {
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using hidl_return_util::validateAndCall;
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using hidl_return_util::validateAndCallWithLock;
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Wifi::Wifi(
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const std::shared_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
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const std::shared_ptr<mode_controller::WifiModeController> mode_controller,
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const std::shared_ptr<feature_flags::WifiFeatureFlags> feature_flags)
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: legacy_hal_(legacy_hal),
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mode_controller_(mode_controller),
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feature_flags_(feature_flags),
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run_state_(RunState::STOPPED) {}
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bool Wifi::isValid() {
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// This object is always valid.
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return true;
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}
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Return<void> Wifi::registerEventCallback(
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const sp<IWifiEventCallback>& event_callback,
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registerEventCallback_cb hidl_status_cb) {
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return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
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&Wifi::registerEventCallbackInternal, hidl_status_cb,
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event_callback);
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}
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Return<bool> Wifi::isStarted() { return run_state_ != RunState::STOPPED; }
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Return<void> Wifi::start(start_cb hidl_status_cb) {
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return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
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&Wifi::startInternal, hidl_status_cb);
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}
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Return<void> Wifi::stop(stop_cb hidl_status_cb) {
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return validateAndCallWithLock(this, WifiStatusCode::ERROR_UNKNOWN,
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&Wifi::stopInternal, hidl_status_cb);
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}
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Return<void> Wifi::getChipIds(getChipIds_cb hidl_status_cb) {
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return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
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&Wifi::getChipIdsInternal, hidl_status_cb);
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}
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Return<void> Wifi::getChip(ChipId chip_id, getChip_cb hidl_status_cb) {
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return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
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&Wifi::getChipInternal, hidl_status_cb, chip_id);
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}
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Return<void> Wifi::debug(const hidl_handle& handle,
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const hidl_vec<hidl_string>&) {
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LOG(INFO) << "-----------Debug is called----------------";
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if (!chip_.get()) {
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return Void();
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}
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return chip_->debug(handle, {});
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}
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WifiStatus Wifi::registerEventCallbackInternal(
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const sp<IWifiEventCallback>& event_callback) {
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if (!event_cb_handler_.addCallback(event_callback)) {
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return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
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}
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return createWifiStatus(WifiStatusCode::SUCCESS);
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}
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WifiStatus Wifi::startInternal() {
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if (run_state_ == RunState::STARTED) {
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return createWifiStatus(WifiStatusCode::SUCCESS);
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} else if (run_state_ == RunState::STOPPING) {
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return createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE,
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"HAL is stopping");
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}
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WifiStatus wifi_status = initializeModeControllerAndLegacyHal();
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if (wifi_status.code == WifiStatusCode::SUCCESS) {
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// Create the chip instance once the HAL is started.
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chip_ = new WifiChip(kChipId, legacy_hal_, mode_controller_,
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feature_flags_);
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run_state_ = RunState::STARTED;
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for (const auto& callback : event_cb_handler_.getCallbacks()) {
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if (!callback->onStart().isOk()) {
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LOG(ERROR) << "Failed to invoke onStart callback";
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};
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}
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LOG(INFO) << "Wifi HAL started";
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} else {
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for (const auto& callback : event_cb_handler_.getCallbacks()) {
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if (!callback->onFailure(wifi_status).isOk()) {
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LOG(ERROR) << "Failed to invoke onFailure callback";
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}
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}
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LOG(ERROR) << "Wifi HAL start failed";
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}
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return wifi_status;
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}
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WifiStatus Wifi::stopInternal(
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/* NONNULL */ std::unique_lock<std::recursive_mutex>* lock) {
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if (run_state_ == RunState::STOPPED) {
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return createWifiStatus(WifiStatusCode::SUCCESS);
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} else if (run_state_ == RunState::STOPPING) {
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return createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE,
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"HAL is stopping");
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}
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// Clear the chip object and its child objects since the HAL is now
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// stopped.
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if (chip_.get()) {
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chip_->invalidate();
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chip_.clear();
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}
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WifiStatus wifi_status = stopLegacyHalAndDeinitializeModeController(lock);
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if (wifi_status.code == WifiStatusCode::SUCCESS) {
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for (const auto& callback : event_cb_handler_.getCallbacks()) {
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if (!callback->onStop().isOk()) {
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LOG(ERROR) << "Failed to invoke onStop callback";
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};
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}
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LOG(INFO) << "Wifi HAL stopped";
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} else {
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for (const auto& callback : event_cb_handler_.getCallbacks()) {
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if (!callback->onFailure(wifi_status).isOk()) {
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LOG(ERROR) << "Failed to invoke onFailure callback";
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}
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}
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LOG(ERROR) << "Wifi HAL stop failed";
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}
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return wifi_status;
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}
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std::pair<WifiStatus, std::vector<ChipId>> Wifi::getChipIdsInternal() {
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std::vector<ChipId> chip_ids;
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if (chip_.get()) {
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chip_ids.emplace_back(kChipId);
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}
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return {createWifiStatus(WifiStatusCode::SUCCESS), std::move(chip_ids)};
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}
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std::pair<WifiStatus, sp<IWifiChip>> Wifi::getChipInternal(ChipId chip_id) {
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if (!chip_.get()) {
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return {createWifiStatus(WifiStatusCode::ERROR_NOT_STARTED), nullptr};
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}
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if (chip_id != kChipId) {
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return {createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS), nullptr};
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}
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return {createWifiStatus(WifiStatusCode::SUCCESS), chip_};
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}
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WifiStatus Wifi::initializeModeControllerAndLegacyHal() {
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if (!mode_controller_->initialize()) {
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LOG(ERROR) << "Failed to initialize firmware mode controller";
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return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
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}
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legacy_hal::wifi_error legacy_status = legacy_hal_->initialize();
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if (legacy_status != legacy_hal::WIFI_SUCCESS) {
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LOG(ERROR) << "Failed to initialize legacy HAL: "
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<< legacyErrorToString(legacy_status);
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return createWifiStatusFromLegacyError(legacy_status);
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}
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return createWifiStatus(WifiStatusCode::SUCCESS);
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}
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WifiStatus Wifi::stopLegacyHalAndDeinitializeModeController(
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/* NONNULL */ std::unique_lock<std::recursive_mutex>* lock) {
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run_state_ = RunState::STOPPING;
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legacy_hal::wifi_error legacy_status =
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legacy_hal_->stop(lock, [&]() { run_state_ = RunState::STOPPED; });
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if (legacy_status != legacy_hal::WIFI_SUCCESS) {
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LOG(ERROR) << "Failed to stop legacy HAL: "
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<< legacyErrorToString(legacy_status);
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return createWifiStatusFromLegacyError(legacy_status);
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}
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if (!mode_controller_->deinitialize()) {
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LOG(ERROR) << "Failed to deinitialize firmware mode controller";
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return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
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}
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return createWifiStatus(WifiStatusCode::SUCCESS);
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}
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} // namespace implementation
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} // namespace V1_2
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} // namespace wifi
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} // namespace hardware
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} // namespace android
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