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Roshan Pius3c4e8a32016-10-03 14:53:58 -07001/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
Roshan Pius3c4e8a32016-10-03 14:53:58 -070017#include <android-base/logging.h>
Roshan Pius3c4e8a32016-10-03 14:53:58 -070018
Roshan Pius56476652016-10-26 14:43:05 -070019#include "hidl_return_util.h"
20#include "wifi.h"
Roshan Pius503582e2016-10-11 08:25:30 -070021#include "wifi_status_util.h"
Roshan Pius3c4e8a32016-10-03 14:53:58 -070022
Roshan Piuscd566bd2016-10-10 08:03:42 -070023namespace {
24// Chip ID to use for the only supported chip.
25static constexpr android::hardware::wifi::V1_0::ChipId kChipId = 0;
26} // namespace
27
Roshan Pius3c4e8a32016-10-03 14:53:58 -070028namespace android {
29namespace hardware {
30namespace wifi {
Etan Cohen6ce50902017-09-14 07:30:57 -070031namespace V1_2 {
Roshan Pius79a99752016-10-04 13:03:58 -070032namespace implementation {
Roshan Pius56476652016-10-26 14:43:05 -070033using hidl_return_util::validateAndCall;
Roshan Pius155344b2017-08-11 15:47:42 -070034using hidl_return_util::validateAndCallWithLock;
Roshan Pius3c4e8a32016-10-03 14:53:58 -070035
Roshan Pius200a17d2017-11-01 13:03:35 -070036Wifi::Wifi(
37 const std::shared_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
38 const std::shared_ptr<mode_controller::WifiModeController> mode_controller,
39 const std::shared_ptr<feature_flags::WifiFeatureFlags> feature_flags)
40 : legacy_hal_(legacy_hal),
41 mode_controller_(mode_controller),
42 feature_flags_(feature_flags),
Roshan Pius6cedc972016-10-28 10:11:17 -070043 run_state_(RunState::STOPPED) {}
Roshan Pius3c4e8a32016-10-03 14:53:58 -070044
Roshan Pius56476652016-10-26 14:43:05 -070045bool Wifi::isValid() {
Roshan Piusabcf78f2017-10-06 16:30:38 -070046 // This object is always valid.
47 return true;
Roshan Pius56476652016-10-26 14:43:05 -070048}
49
Roshan Pius3c4e8a32016-10-03 14:53:58 -070050Return<void> Wifi::registerEventCallback(
Roshan Pius56476652016-10-26 14:43:05 -070051 const sp<IWifiEventCallback>& event_callback,
52 registerEventCallback_cb hidl_status_cb) {
Roshan Piusabcf78f2017-10-06 16:30:38 -070053 return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
54 &Wifi::registerEventCallbackInternal, hidl_status_cb,
55 event_callback);
Roshan Pius3c4e8a32016-10-03 14:53:58 -070056}
57
Roshan Piusabcf78f2017-10-06 16:30:38 -070058Return<bool> Wifi::isStarted() { return run_state_ != RunState::STOPPED; }
Roshan Pius3c4e8a32016-10-03 14:53:58 -070059
Roshan Pius503582e2016-10-11 08:25:30 -070060Return<void> Wifi::start(start_cb hidl_status_cb) {
Roshan Piusabcf78f2017-10-06 16:30:38 -070061 return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
62 &Wifi::startInternal, hidl_status_cb);
Roshan Pius56476652016-10-26 14:43:05 -070063}
64
65Return<void> Wifi::stop(stop_cb hidl_status_cb) {
Roshan Piusabcf78f2017-10-06 16:30:38 -070066 return validateAndCallWithLock(this, WifiStatusCode::ERROR_UNKNOWN,
67 &Wifi::stopInternal, hidl_status_cb);
Roshan Pius56476652016-10-26 14:43:05 -070068}
69
70Return<void> Wifi::getChipIds(getChipIds_cb hidl_status_cb) {
Roshan Piusabcf78f2017-10-06 16:30:38 -070071 return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
72 &Wifi::getChipIdsInternal, hidl_status_cb);
Roshan Pius56476652016-10-26 14:43:05 -070073}
74
75Return<void> Wifi::getChip(ChipId chip_id, getChip_cb hidl_status_cb) {
Roshan Piusabcf78f2017-10-06 16:30:38 -070076 return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
77 &Wifi::getChipInternal, hidl_status_cb, chip_id);
Roshan Pius56476652016-10-26 14:43:05 -070078}
79
80WifiStatus Wifi::registerEventCallbackInternal(
81 const sp<IWifiEventCallback>& event_callback) {
Roshan Piusabcf78f2017-10-06 16:30:38 -070082 if (!event_cb_handler_.addCallback(event_callback)) {
83 return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
84 }
85 return createWifiStatus(WifiStatusCode::SUCCESS);
Roshan Pius56476652016-10-26 14:43:05 -070086}
87
88WifiStatus Wifi::startInternal() {
Roshan Piusabcf78f2017-10-06 16:30:38 -070089 if (run_state_ == RunState::STARTED) {
90 return createWifiStatus(WifiStatusCode::SUCCESS);
91 } else if (run_state_ == RunState::STOPPING) {
92 return createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE,
93 "HAL is stopping");
Roshan Pius52947fb2016-11-18 11:38:07 -080094 }
Roshan Piusabcf78f2017-10-06 16:30:38 -070095 WifiStatus wifi_status = initializeLegacyHal();
96 if (wifi_status.code == WifiStatusCode::SUCCESS) {
97 // Create the chip instance once the HAL is started.
Roshan Pius200a17d2017-11-01 13:03:35 -070098 chip_ = new WifiChip(kChipId, legacy_hal_, mode_controller_,
99 feature_flags_);
Roshan Piusabcf78f2017-10-06 16:30:38 -0700100 run_state_ = RunState::STARTED;
101 for (const auto& callback : event_cb_handler_.getCallbacks()) {
102 if (!callback->onStart().isOk()) {
103 LOG(ERROR) << "Failed to invoke onStart callback";
104 };
105 }
106 LOG(INFO) << "Wifi HAL started";
107 } else {
108 for (const auto& callback : event_cb_handler_.getCallbacks()) {
109 if (!callback->onFailure(wifi_status).isOk()) {
110 LOG(ERROR) << "Failed to invoke onFailure callback";
111 }
112 }
113 LOG(ERROR) << "Wifi HAL start failed";
Roshan Pius52947fb2016-11-18 11:38:07 -0800114 }
Roshan Piusabcf78f2017-10-06 16:30:38 -0700115 return wifi_status;
Roshan Pius3c4e8a32016-10-03 14:53:58 -0700116}
117
Roshan Pius155344b2017-08-11 15:47:42 -0700118WifiStatus Wifi::stopInternal(
119 /* NONNULL */ std::unique_lock<std::recursive_mutex>* lock) {
Roshan Piusabcf78f2017-10-06 16:30:38 -0700120 if (run_state_ == RunState::STOPPED) {
121 return createWifiStatus(WifiStatusCode::SUCCESS);
122 } else if (run_state_ == RunState::STOPPING) {
123 return createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE,
124 "HAL is stopping");
Roshan Piusaabe5752016-09-29 09:03:59 -0700125 }
Roshan Piusabcf78f2017-10-06 16:30:38 -0700126 // Clear the chip object and its child objects since the HAL is now
127 // stopped.
128 if (chip_.get()) {
129 chip_->invalidate();
130 chip_.clear();
Roshan Piusaabe5752016-09-29 09:03:59 -0700131 }
Roshan Piusabcf78f2017-10-06 16:30:38 -0700132 WifiStatus wifi_status = stopLegacyHalAndDeinitializeModeController(lock);
133 if (wifi_status.code == WifiStatusCode::SUCCESS) {
134 for (const auto& callback : event_cb_handler_.getCallbacks()) {
135 if (!callback->onStop().isOk()) {
136 LOG(ERROR) << "Failed to invoke onStop callback";
137 };
138 }
139 LOG(INFO) << "Wifi HAL stopped";
140 } else {
141 for (const auto& callback : event_cb_handler_.getCallbacks()) {
142 if (!callback->onFailure(wifi_status).isOk()) {
143 LOG(ERROR) << "Failed to invoke onFailure callback";
144 }
145 }
146 LOG(ERROR) << "Wifi HAL stop failed";
147 }
148 return wifi_status;
Roshan Pius3c4e8a32016-10-03 14:53:58 -0700149}
150
Roshan Pius56476652016-10-26 14:43:05 -0700151std::pair<WifiStatus, std::vector<ChipId>> Wifi::getChipIdsInternal() {
Roshan Piusabcf78f2017-10-06 16:30:38 -0700152 std::vector<ChipId> chip_ids;
153 if (chip_.get()) {
154 chip_ids.emplace_back(kChipId);
155 }
156 return {createWifiStatus(WifiStatusCode::SUCCESS), std::move(chip_ids)};
Roshan Piuscd566bd2016-10-10 08:03:42 -0700157}
158
Roshan Pius56476652016-10-26 14:43:05 -0700159std::pair<WifiStatus, sp<IWifiChip>> Wifi::getChipInternal(ChipId chip_id) {
Roshan Piusabcf78f2017-10-06 16:30:38 -0700160 if (!chip_.get()) {
161 return {createWifiStatus(WifiStatusCode::ERROR_NOT_STARTED), nullptr};
162 }
163 if (chip_id != kChipId) {
164 return {createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS), nullptr};
165 }
166 return {createWifiStatus(WifiStatusCode::SUCCESS), chip_};
Roshan Pius3c4e8a32016-10-03 14:53:58 -0700167}
Roshan Pius52947fb2016-11-18 11:38:07 -0800168
169WifiStatus Wifi::initializeLegacyHal() {
Roshan Piusabcf78f2017-10-06 16:30:38 -0700170 legacy_hal::wifi_error legacy_status = legacy_hal_->initialize();
171 if (legacy_status != legacy_hal::WIFI_SUCCESS) {
172 LOG(ERROR) << "Failed to initialize legacy HAL: "
173 << legacyErrorToString(legacy_status);
174 return createWifiStatusFromLegacyError(legacy_status);
175 }
176 return createWifiStatus(WifiStatusCode::SUCCESS);
Roshan Pius52947fb2016-11-18 11:38:07 -0800177}
178
Roshan Pius155344b2017-08-11 15:47:42 -0700179WifiStatus Wifi::stopLegacyHalAndDeinitializeModeController(
180 /* NONNULL */ std::unique_lock<std::recursive_mutex>* lock) {
Roshan Piusabcf78f2017-10-06 16:30:38 -0700181 run_state_ = RunState::STOPPING;
182 legacy_hal::wifi_error legacy_status =
183 legacy_hal_->stop(lock, [&]() { run_state_ = RunState::STOPPED; });
184 if (legacy_status != legacy_hal::WIFI_SUCCESS) {
185 LOG(ERROR) << "Failed to stop legacy HAL: "
186 << legacyErrorToString(legacy_status);
187 return createWifiStatusFromLegacyError(legacy_status);
188 }
189 if (!mode_controller_->deinitialize()) {
190 LOG(ERROR) << "Failed to deinitialize firmware mode controller";
191 return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
192 }
193 return createWifiStatus(WifiStatusCode::SUCCESS);
Roshan Pius52947fb2016-11-18 11:38:07 -0800194}
Roshan Pius79a99752016-10-04 13:03:58 -0700195} // namespace implementation
Etan Cohen6ce50902017-09-14 07:30:57 -0700196} // namespace V1_2
Roshan Pius3c4e8a32016-10-03 14:53:58 -0700197} // namespace wifi
198} // namespace hardware
199} // namespace android