Amy | e4ddc0d | 2019-06-13 19:21:24 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 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 | |
| 17 | #define LOG_TAG "android.hardware.tv.cec@1.0-mock" |
| 18 | #include <android-base/logging.h> |
| 19 | #include <utils/Log.h> |
| 20 | |
| 21 | #include <hardware/hardware.h> |
| 22 | #include <hardware/hdmi_cec.h> |
| 23 | #include "HdmiCecMock.h" |
| 24 | |
| 25 | namespace android { |
| 26 | namespace hardware { |
| 27 | namespace tv { |
| 28 | namespace cec { |
| 29 | namespace V1_0 { |
| 30 | namespace implementation { |
| 31 | |
| 32 | /* |
| 33 | * (*set_option)() passes flags controlling the way HDMI-CEC service works down |
| 34 | * to HAL implementation. Those flags will be used in case the feature needs |
| 35 | * update in HAL itself, firmware or microcontroller. |
| 36 | */ |
| 37 | void HdmiCecMock::cec_set_option(int flag, int value) { |
| 38 | // maintain options and set them accordingly |
| 39 | switch (flag) { |
| 40 | case HDMI_OPTION_WAKEUP: |
| 41 | mOptionWakeUp = value; |
| 42 | break; |
| 43 | case HDMI_OPTION_ENABLE_CEC: |
| 44 | mOptionEnableCec = value; |
| 45 | break; |
| 46 | case HDMI_OPTION_SYSTEM_CEC_CONTROL: |
| 47 | mOptionSystemCecControl = value; |
| 48 | break; |
| 49 | case HDMI_OPTION_SET_LANG: |
| 50 | mOptionLanguage = value; |
| 51 | } |
| 52 | } |
| 53 | |
| 54 | // Methods from ::android::hardware::tv::cec::V1_0::IHdmiCec follow. |
| 55 | Return<Result> HdmiCecMock::addLogicalAddress(CecLogicalAddress addr) { |
| 56 | // have a list to maintain logical addresses |
| 57 | int size = mLogicalAddresses.size(); |
| 58 | mLogicalAddresses.resize(size + 1); |
| 59 | mLogicalAddresses[size + 1] = addr; |
| 60 | return Result::SUCCESS; |
| 61 | } |
| 62 | |
| 63 | Return<void> HdmiCecMock::clearLogicalAddress() { |
| 64 | // remove logical address from the list |
| 65 | mLogicalAddresses = {}; |
| 66 | return Void(); |
| 67 | } |
| 68 | |
| 69 | Return<void> HdmiCecMock::getPhysicalAddress(getPhysicalAddress_cb _hidl_cb) { |
| 70 | // maintain a physical address and return it |
| 71 | // default 0xFFFF, update on hotplug event |
| 72 | _hidl_cb(Result::SUCCESS, mPhysicalAddress); |
| 73 | return Void(); |
| 74 | } |
| 75 | |
| 76 | Return<SendMessageResult> HdmiCecMock::sendMessage(const CecMessage& message) { |
| 77 | if (message.body.size() == 0) { |
| 78 | return SendMessageResult::NACK; |
| 79 | } |
Amy | 6490b2f | 2019-07-18 16:34:49 -0700 | [diff] [blame^] | 80 | sendMessageToFifo(message); |
Amy | e4ddc0d | 2019-06-13 19:21:24 -0700 | [diff] [blame] | 81 | return SendMessageResult::SUCCESS; |
| 82 | } |
| 83 | |
| 84 | Return<void> HdmiCecMock::setCallback(const sp<IHdmiCecCallback>& callback) { |
| 85 | if (mCallback != nullptr) { |
| 86 | mCallback = nullptr; |
| 87 | } |
| 88 | |
| 89 | if (callback != nullptr) { |
| 90 | mCallback = callback; |
| 91 | mCallback->linkToDeath(this, 0 /*cookie*/); |
Amy | 6490b2f | 2019-07-18 16:34:49 -0700 | [diff] [blame^] | 92 | |
| 93 | mInputFile = open(CEC_MSG_IN_FIFO, O_RDWR); |
| 94 | mOutputFile = open(CEC_MSG_OUT_FIFO, O_RDWR); |
| 95 | pthread_create(&mThreadId, NULL, __threadLoop, this); |
| 96 | pthread_setname_np(mThreadId, "hdmi_cec_loop"); |
Amy | e4ddc0d | 2019-06-13 19:21:24 -0700 | [diff] [blame] | 97 | } |
| 98 | return Void(); |
| 99 | } |
| 100 | |
| 101 | Return<int32_t> HdmiCecMock::getCecVersion() { |
| 102 | // maintain a cec version and return it |
| 103 | return mCecVersion; |
| 104 | } |
| 105 | |
| 106 | Return<uint32_t> HdmiCecMock::getVendorId() { |
| 107 | return mCecVendorId; |
| 108 | } |
| 109 | |
| 110 | Return<void> HdmiCecMock::getPortInfo(getPortInfo_cb _hidl_cb) { |
Amy | e4ddc0d | 2019-06-13 19:21:24 -0700 | [diff] [blame] | 111 | // TODO ready port info from device specific config |
Amy | 6490b2f | 2019-07-18 16:34:49 -0700 | [diff] [blame^] | 112 | _hidl_cb(mPortInfo); |
Amy | e4ddc0d | 2019-06-13 19:21:24 -0700 | [diff] [blame] | 113 | return Void(); |
| 114 | } |
| 115 | |
| 116 | Return<void> HdmiCecMock::setOption(OptionKey key, bool value) { |
| 117 | cec_set_option(static_cast<int>(key), value ? 1 : 0); |
| 118 | return Void(); |
| 119 | } |
| 120 | |
| 121 | Return<void> HdmiCecMock::setLanguage(const hidl_string& language) { |
| 122 | if (language.size() != 3) { |
| 123 | LOG(ERROR) << "Wrong language code: expected 3 letters, but it was " << language.size() |
| 124 | << "."; |
| 125 | return Void(); |
| 126 | } |
| 127 | // TODO validate if language is a valid language code |
| 128 | const char* languageStr = language.c_str(); |
| 129 | int convertedLanguage = ((languageStr[0] & 0xFF) << 16) | ((languageStr[1] & 0xFF) << 8) | |
| 130 | (languageStr[2] & 0xFF); |
| 131 | cec_set_option(HDMI_OPTION_SET_LANG, convertedLanguage); |
| 132 | return Void(); |
| 133 | } |
| 134 | |
| 135 | Return<void> HdmiCecMock::enableAudioReturnChannel(int32_t portId __unused, bool enable __unused) { |
| 136 | // Maintain ARC status |
| 137 | return Void(); |
| 138 | } |
| 139 | |
Amy | 6490b2f | 2019-07-18 16:34:49 -0700 | [diff] [blame^] | 140 | Return<bool> HdmiCecMock::isConnected(int32_t portId) { |
Amy | e4ddc0d | 2019-06-13 19:21:24 -0700 | [diff] [blame] | 141 | // maintain port connection status and update on hotplug event |
Amy | 6490b2f | 2019-07-18 16:34:49 -0700 | [diff] [blame^] | 142 | if (portId < mTotalPorts && portId >= 0) { |
| 143 | return mPortConnectionStatus[portId]; |
| 144 | } |
Amy | e4ddc0d | 2019-06-13 19:21:24 -0700 | [diff] [blame] | 145 | return false; |
| 146 | } |
| 147 | |
Amy | 6490b2f | 2019-07-18 16:34:49 -0700 | [diff] [blame^] | 148 | void* HdmiCecMock::__threadLoop(void* user) { |
| 149 | HdmiCecMock* const self = static_cast<HdmiCecMock*>(user); |
| 150 | self->threadLoop(); |
| 151 | return 0; |
| 152 | } |
| 153 | |
| 154 | int HdmiCecMock::readMessageFromFifo(unsigned char* buf, int msgCount) { |
| 155 | if (msgCount <= 0 || !buf) { |
| 156 | return 0; |
| 157 | } |
| 158 | |
| 159 | int ret = -1; |
| 160 | /* maybe blocked at driver */ |
| 161 | ret = read(mInputFile, buf, msgCount); |
| 162 | if (ret < 0) { |
| 163 | ALOGE("[halimp] read :%s failed, ret:%d\n", CEC_MSG_IN_FIFO, ret); |
| 164 | return -1; |
| 165 | } |
| 166 | |
| 167 | return ret; |
| 168 | } |
| 169 | |
| 170 | int HdmiCecMock::sendMessageToFifo(const CecMessage& message) { |
| 171 | unsigned char msgBuf[CEC_MESSAGE_BODY_MAX_LENGTH]; |
| 172 | int ret = -1; |
| 173 | |
| 174 | memset(msgBuf, 0, sizeof(msgBuf)); |
| 175 | msgBuf[0] = ((static_cast<uint8_t>(message.initiator) & 0xf) << 4) | |
| 176 | (static_cast<uint8_t>(message.destination) & 0xf); |
| 177 | |
| 178 | size_t length = std::min(static_cast<size_t>(message.body.size()), |
| 179 | static_cast<size_t>(MaxLength::MESSAGE_BODY)); |
| 180 | for (size_t i = 0; i < length; ++i) { |
| 181 | msgBuf[i + 1] = static_cast<unsigned char>(message.body[i]); |
| 182 | } |
| 183 | |
| 184 | // open the output pipe for writing outgoing cec message |
| 185 | mOutputFile = open(CEC_MSG_OUT_FIFO, O_WRONLY); |
| 186 | if (mOutputFile < 0) { |
| 187 | ALOGD("[halimp] file open failed for writing"); |
| 188 | return -1; |
| 189 | } |
| 190 | |
| 191 | // write message into the output pipe |
| 192 | ret = write(mOutputFile, msgBuf, length + 1); |
| 193 | close(mOutputFile); |
| 194 | if (ret < 0) { |
| 195 | ALOGE("[halimp] write :%s failed, ret:%d\n", CEC_MSG_OUT_FIFO, ret); |
| 196 | return -1; |
| 197 | } |
| 198 | return ret; |
| 199 | } |
| 200 | |
| 201 | void HdmiCecMock::printCecMsgBuf(const char* msg_buf, int len) { |
| 202 | char buf[64] = {}; |
| 203 | int i, size = 0; |
| 204 | memset(buf, 0, sizeof(buf)); |
| 205 | for (i = 0; i < len; i++) { |
| 206 | size += sprintf(buf + size, " %02x", msg_buf[i]); |
| 207 | } |
| 208 | ALOGD("[halimp] %s, msg:%s", __FUNCTION__, buf); |
| 209 | } |
| 210 | |
| 211 | void HdmiCecMock::handleHotplugMessage(unsigned char* msgBuf) { |
| 212 | HotplugEvent hotplugEvent{.connected = ((msgBuf[3]) & 0xf) > 0, |
| 213 | .portId = static_cast<uint32_t>(msgBuf[0] & 0xf)}; |
| 214 | |
| 215 | if (hotplugEvent.portId >= mPortInfo.size()) { |
| 216 | ALOGD("[halimp] ignore hot plug message, id %x does not exist", hotplugEvent.portId); |
| 217 | return; |
| 218 | } |
| 219 | |
| 220 | ALOGD("[halimp] hot plug port id %x, is connected %x", (msgBuf[0] & 0xf), (msgBuf[3] & 0xf)); |
| 221 | if (mPortInfo[hotplugEvent.portId].type == HdmiPortType::OUTPUT) { |
| 222 | mPhysicalAddress = |
| 223 | ((hotplugEvent.connected == 0) ? 0xffff : ((msgBuf[1] << 8) | (msgBuf[2]))); |
| 224 | mPortInfo[hotplugEvent.portId].physicalAddress = mPhysicalAddress; |
| 225 | ALOGD("[halimp] hot plug physical address %x", mPhysicalAddress); |
| 226 | } |
| 227 | |
| 228 | // todo update connection status |
| 229 | |
| 230 | if (mCallback != nullptr) { |
| 231 | mCallback->onHotplugEvent(hotplugEvent); |
| 232 | } |
| 233 | } |
| 234 | |
| 235 | void HdmiCecMock::handleCecMessage(unsigned char* msgBuf, int megSize) { |
| 236 | CecMessage message; |
| 237 | size_t length = std::min(static_cast<size_t>(megSize - 1), |
| 238 | static_cast<size_t>(MaxLength::MESSAGE_BODY)); |
| 239 | message.body.resize(length); |
| 240 | |
| 241 | for (size_t i = 0; i < length; ++i) { |
| 242 | message.body[i] = static_cast<uint8_t>(msgBuf[i + 1]); |
| 243 | ALOGD("[halimp] msg body %x", message.body[i]); |
| 244 | } |
| 245 | |
| 246 | message.initiator = static_cast<CecLogicalAddress>((msgBuf[0] >> 4) & 0xf); |
| 247 | ALOGD("[halimp] msg init %x", message.initiator); |
| 248 | message.destination = static_cast<CecLogicalAddress>((msgBuf[0] >> 0) & 0xf); |
| 249 | ALOGD("[halimp] msg dest %x", message.destination); |
| 250 | |
| 251 | // messageValidateAndHandle(&event); |
| 252 | |
| 253 | if (mCallback != nullptr) { |
| 254 | mCallback->onCecMessage(message); |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | void HdmiCecMock::threadLoop() { |
| 259 | ALOGD("[halimp] threadLoop start."); |
| 260 | unsigned char msgBuf[CEC_MESSAGE_BODY_MAX_LENGTH]; |
| 261 | int r = -1; |
| 262 | |
| 263 | // open the input pipe |
| 264 | while (mInputFile < 0) { |
| 265 | usleep(1000 * 1000); |
| 266 | mInputFile = open(CEC_MSG_IN_FIFO, O_RDONLY); |
| 267 | } |
| 268 | ALOGD("[halimp] file open ok, fd = %d.", mInputFile); |
| 269 | |
| 270 | while (mCecThreadRun) { |
| 271 | if (!mOptionSystemCecControl) { |
| 272 | usleep(1000 * 1000); |
| 273 | continue; |
| 274 | } |
| 275 | |
| 276 | memset(msgBuf, 0, sizeof(msgBuf)); |
| 277 | // try to get a message from dev. |
| 278 | // echo -n -e '\x04\x83' >> /dev/cec |
| 279 | r = readMessageFromFifo(msgBuf, CEC_MESSAGE_BODY_MAX_LENGTH); |
| 280 | if (r <= 1) { |
| 281 | // ignore received ping messages |
| 282 | continue; |
| 283 | } |
| 284 | |
| 285 | printCecMsgBuf((const char*)msgBuf, r); |
| 286 | |
| 287 | if (((msgBuf[0] >> 4) & 0xf) == 0xf) { |
| 288 | // the message is a hotplug event |
| 289 | handleHotplugMessage(msgBuf); |
| 290 | continue; |
| 291 | } |
| 292 | |
| 293 | handleCecMessage(msgBuf, r); |
| 294 | } |
| 295 | |
| 296 | ALOGD("[halimp] thread end."); |
| 297 | // mCecDevice.mExited = true; |
| 298 | } |
| 299 | |
Amy | e4ddc0d | 2019-06-13 19:21:24 -0700 | [diff] [blame] | 300 | HdmiCecMock::HdmiCecMock() { |
Amy | 6490b2f | 2019-07-18 16:34:49 -0700 | [diff] [blame^] | 301 | ALOGE("[halimp] Opening a virtual HAL for testing and virtual machine."); |
| 302 | mCallback = nullptr; |
| 303 | mPortInfo.resize(mTotalPorts); |
| 304 | mPortConnectionStatus.resize(mTotalPorts); |
| 305 | mPortInfo[0] = {.type = HdmiPortType::OUTPUT, |
| 306 | .portId = static_cast<uint32_t>(0), |
| 307 | .cecSupported = true, |
| 308 | .arcSupported = false, |
| 309 | .physicalAddress = mPhysicalAddress}; |
| 310 | mPortConnectionStatus[0] = false; |
Amy | e4ddc0d | 2019-06-13 19:21:24 -0700 | [diff] [blame] | 311 | } |
| 312 | |
| 313 | } // namespace implementation |
| 314 | } // namespace V1_0 |
| 315 | } // namespace cec |
| 316 | } // namespace tv |
| 317 | } // namespace hardware |
| 318 | } // namespace android |