1 /*
2 * Copyright (C) 2021 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 #include "AidlSensorHalWrapper.h"
18 #include "ISensorsWrapper.h"
19 #include "SensorDeviceUtils.h"
20 #include "android/hardware/sensors/2.0/types.h"
21
22 #include <aidl/android/hardware/sensors/BnSensorsCallback.h>
23 #include <aidlcommonsupport/NativeHandle.h>
24 #include <android-base/logging.h>
25 #include <android/binder_manager.h>
26
27 using ::aidl::android::hardware::sensors::AdditionalInfo;
28 using ::aidl::android::hardware::sensors::DynamicSensorInfo;
29 using ::aidl::android::hardware::sensors::Event;
30 using ::aidl::android::hardware::sensors::ISensors;
31 using ::aidl::android::hardware::sensors::SensorInfo;
32 using ::aidl::android::hardware::sensors::SensorStatus;
33 using ::aidl::android::hardware::sensors::SensorType;
34 using ::android::AidlMessageQueue;
35 using ::android::hardware::EventFlag;
36 using ::android::hardware::sensors::V2_1::implementation::MAX_RECEIVE_BUFFER_EVENT_COUNT;
37
38 namespace android {
39
40 namespace {
41
convertToStatus(ndk::ScopedAStatus status)42 status_t convertToStatus(ndk::ScopedAStatus status) {
43 if (status.isOk()) {
44 return OK;
45 } else {
46 switch (status.getExceptionCode()) {
47 case EX_ILLEGAL_ARGUMENT: {
48 return BAD_VALUE;
49 }
50 case EX_SECURITY: {
51 return PERMISSION_DENIED;
52 }
53 case EX_UNSUPPORTED_OPERATION: {
54 return INVALID_OPERATION;
55 }
56 case EX_SERVICE_SPECIFIC: {
57 switch (status.getServiceSpecificError()) {
58 case ISensors::ERROR_BAD_VALUE: {
59 return BAD_VALUE;
60 }
61 case ISensors::ERROR_NO_MEMORY: {
62 return NO_MEMORY;
63 }
64 default: {
65 return UNKNOWN_ERROR;
66 }
67 }
68 }
69 default: {
70 return UNKNOWN_ERROR;
71 }
72 }
73 }
74 }
75
convertToSensor(const SensorInfo & src,sensor_t * dst)76 void convertToSensor(const SensorInfo &src, sensor_t *dst) {
77 dst->name = strdup(src.name.c_str());
78 dst->vendor = strdup(src.vendor.c_str());
79 dst->version = src.version;
80 dst->handle = src.sensorHandle;
81 dst->type = (int)src.type;
82 dst->maxRange = src.maxRange;
83 dst->resolution = src.resolution;
84 dst->power = src.power;
85 dst->minDelay = src.minDelayUs;
86 dst->fifoReservedEventCount = src.fifoReservedEventCount;
87 dst->fifoMaxEventCount = src.fifoMaxEventCount;
88 dst->stringType = strdup(src.typeAsString.c_str());
89 dst->requiredPermission = strdup(src.requiredPermission.c_str());
90 dst->maxDelay = src.maxDelayUs;
91 dst->flags = src.flags;
92 dst->reserved[0] = dst->reserved[1] = 0;
93 }
94
convertToSensorEvent(const Event & src,sensors_event_t * dst)95 void convertToSensorEvent(const Event &src, sensors_event_t *dst) {
96 *dst = {.version = sizeof(sensors_event_t),
97 .sensor = src.sensorHandle,
98 .type = (int32_t)src.sensorType,
99 .reserved0 = 0,
100 .timestamp = src.timestamp};
101
102 switch (src.sensorType) {
103 case SensorType::META_DATA: {
104 // Legacy HALs expect the handle reference in the meta data field.
105 // Copy it over from the handle of the event.
106 dst->meta_data.what = (int32_t)src.payload.get<Event::EventPayload::meta>().what;
107 dst->meta_data.sensor = src.sensorHandle;
108 // Set the sensor handle to 0 to maintain compatibility.
109 dst->sensor = 0;
110 break;
111 }
112
113 case SensorType::ACCELEROMETER:
114 case SensorType::MAGNETIC_FIELD:
115 case SensorType::ORIENTATION:
116 case SensorType::GYROSCOPE:
117 case SensorType::GRAVITY:
118 case SensorType::LINEAR_ACCELERATION: {
119 dst->acceleration.x = src.payload.get<Event::EventPayload::vec3>().x;
120 dst->acceleration.y = src.payload.get<Event::EventPayload::vec3>().y;
121 dst->acceleration.z = src.payload.get<Event::EventPayload::vec3>().z;
122 dst->acceleration.status = (int32_t)src.payload.get<Event::EventPayload::vec3>().status;
123 break;
124 }
125
126 case SensorType::GAME_ROTATION_VECTOR: {
127 dst->data[0] = src.payload.get<Event::EventPayload::vec4>().x;
128 dst->data[1] = src.payload.get<Event::EventPayload::vec4>().y;
129 dst->data[2] = src.payload.get<Event::EventPayload::vec4>().z;
130 dst->data[3] = src.payload.get<Event::EventPayload::vec4>().w;
131 break;
132 }
133
134 case SensorType::ROTATION_VECTOR:
135 case SensorType::GEOMAGNETIC_ROTATION_VECTOR: {
136 dst->data[0] = src.payload.get<Event::EventPayload::data>().values[0];
137 dst->data[1] = src.payload.get<Event::EventPayload::data>().values[1];
138 dst->data[2] = src.payload.get<Event::EventPayload::data>().values[2];
139 dst->data[3] = src.payload.get<Event::EventPayload::data>().values[3];
140 dst->data[4] = src.payload.get<Event::EventPayload::data>().values[4];
141 break;
142 }
143
144 case SensorType::MAGNETIC_FIELD_UNCALIBRATED:
145 case SensorType::GYROSCOPE_UNCALIBRATED:
146 case SensorType::ACCELEROMETER_UNCALIBRATED: {
147 dst->uncalibrated_gyro.x_uncalib = src.payload.get<Event::EventPayload::uncal>().x;
148 dst->uncalibrated_gyro.y_uncalib = src.payload.get<Event::EventPayload::uncal>().y;
149 dst->uncalibrated_gyro.z_uncalib = src.payload.get<Event::EventPayload::uncal>().z;
150 dst->uncalibrated_gyro.x_bias = src.payload.get<Event::EventPayload::uncal>().xBias;
151 dst->uncalibrated_gyro.y_bias = src.payload.get<Event::EventPayload::uncal>().yBias;
152 dst->uncalibrated_gyro.z_bias = src.payload.get<Event::EventPayload::uncal>().zBias;
153 break;
154 }
155
156 case SensorType::HINGE_ANGLE:
157 case SensorType::DEVICE_ORIENTATION:
158 case SensorType::LIGHT:
159 case SensorType::PRESSURE:
160 case SensorType::PROXIMITY:
161 case SensorType::RELATIVE_HUMIDITY:
162 case SensorType::AMBIENT_TEMPERATURE:
163 case SensorType::SIGNIFICANT_MOTION:
164 case SensorType::STEP_DETECTOR:
165 case SensorType::TILT_DETECTOR:
166 case SensorType::WAKE_GESTURE:
167 case SensorType::GLANCE_GESTURE:
168 case SensorType::PICK_UP_GESTURE:
169 case SensorType::WRIST_TILT_GESTURE:
170 case SensorType::STATIONARY_DETECT:
171 case SensorType::MOTION_DETECT:
172 case SensorType::HEART_BEAT:
173 case SensorType::LOW_LATENCY_OFFBODY_DETECT: {
174 dst->data[0] = src.payload.get<Event::EventPayload::scalar>();
175 break;
176 }
177
178 case SensorType::STEP_COUNTER: {
179 dst->u64.step_counter = src.payload.get<Event::EventPayload::stepCount>();
180 break;
181 }
182
183 case SensorType::HEART_RATE: {
184 dst->heart_rate.bpm = src.payload.get<Event::EventPayload::heartRate>().bpm;
185 dst->heart_rate.status =
186 (int8_t)src.payload.get<Event::EventPayload::heartRate>().status;
187 break;
188 }
189
190 case SensorType::POSE_6DOF: { // 15 floats
191 for (size_t i = 0; i < 15; ++i) {
192 dst->data[i] = src.payload.get<Event::EventPayload::pose6DOF>().values[i];
193 }
194 break;
195 }
196
197 case SensorType::DYNAMIC_SENSOR_META: {
198 dst->dynamic_sensor_meta.connected =
199 src.payload.get<Event::EventPayload::dynamic>().connected;
200 dst->dynamic_sensor_meta.handle =
201 src.payload.get<Event::EventPayload::dynamic>().sensorHandle;
202 dst->dynamic_sensor_meta.sensor = NULL; // to be filled in later
203
204 memcpy(dst->dynamic_sensor_meta.uuid,
205 src.payload.get<Event::EventPayload::dynamic>().uuid.values.data(), 16);
206
207 break;
208 }
209
210 case SensorType::ADDITIONAL_INFO: {
211 const AdditionalInfo &srcInfo = src.payload.get<Event::EventPayload::additional>();
212
213 additional_info_event_t *dstInfo = &dst->additional_info;
214 dstInfo->type = (int32_t)srcInfo.type;
215 dstInfo->serial = srcInfo.serial;
216
217 switch (srcInfo.payload.getTag()) {
218 case AdditionalInfo::AdditionalInfoPayload::Tag::dataInt32: {
219 const auto &values =
220 srcInfo.payload.get<AdditionalInfo::AdditionalInfoPayload::dataInt32>()
221 .values;
222 CHECK_EQ(values.size() * sizeof(int32_t), sizeof(dstInfo->data_int32));
223 memcpy(dstInfo->data_int32, values.data(), sizeof(dstInfo->data_int32));
224 break;
225 }
226 case AdditionalInfo::AdditionalInfoPayload::Tag::dataFloat: {
227 const auto &values =
228 srcInfo.payload.get<AdditionalInfo::AdditionalInfoPayload::dataFloat>()
229 .values;
230 CHECK_EQ(values.size() * sizeof(float), sizeof(dstInfo->data_float));
231 memcpy(dstInfo->data_float, values.data(), sizeof(dstInfo->data_float));
232 break;
233 }
234 default: {
235 ALOGE("Invalid sensor additional info tag: %d", (int)srcInfo.payload.getTag());
236 }
237 }
238 break;
239 }
240
241 case SensorType::HEAD_TRACKER: {
242 const auto &ht = src.payload.get<Event::EventPayload::headTracker>();
243 dst->head_tracker.rx = ht.rx;
244 dst->head_tracker.ry = ht.ry;
245 dst->head_tracker.rz = ht.rz;
246 dst->head_tracker.vx = ht.vx;
247 dst->head_tracker.vy = ht.vy;
248 dst->head_tracker.vz = ht.vz;
249 dst->head_tracker.discontinuity_count = ht.discontinuityCount;
250 break;
251 }
252
253 case SensorType::ACCELEROMETER_LIMITED_AXES:
254 case SensorType::GYROSCOPE_LIMITED_AXES:
255 dst->limited_axes_imu.x = src.payload.get<Event::EventPayload::limitedAxesImu>().x;
256 dst->limited_axes_imu.y = src.payload.get<Event::EventPayload::limitedAxesImu>().y;
257 dst->limited_axes_imu.z = src.payload.get<Event::EventPayload::limitedAxesImu>().z;
258 dst->limited_axes_imu.x_supported =
259 src.payload.get<Event::EventPayload::limitedAxesImu>().xSupported;
260 dst->limited_axes_imu.y_supported =
261 src.payload.get<Event::EventPayload::limitedAxesImu>().ySupported;
262 dst->limited_axes_imu.z_supported =
263 src.payload.get<Event::EventPayload::limitedAxesImu>().zSupported;
264 break;
265
266 case SensorType::ACCELEROMETER_LIMITED_AXES_UNCALIBRATED:
267 case SensorType::GYROSCOPE_LIMITED_AXES_UNCALIBRATED:
268 dst->limited_axes_imu_uncalibrated.x_uncalib =
269 src.payload.get<Event::EventPayload::limitedAxesImuUncal>().x;
270 dst->limited_axes_imu_uncalibrated.y_uncalib =
271 src.payload.get<Event::EventPayload::limitedAxesImuUncal>().y;
272 dst->limited_axes_imu_uncalibrated.z_uncalib =
273 src.payload.get<Event::EventPayload::limitedAxesImuUncal>().z;
274 dst->limited_axes_imu_uncalibrated.x_bias =
275 src.payload.get<Event::EventPayload::limitedAxesImuUncal>().xBias;
276 dst->limited_axes_imu_uncalibrated.y_bias =
277 src.payload.get<Event::EventPayload::limitedAxesImuUncal>().yBias;
278 dst->limited_axes_imu_uncalibrated.z_bias =
279 src.payload.get<Event::EventPayload::limitedAxesImuUncal>().zBias;
280 dst->limited_axes_imu_uncalibrated.x_supported =
281 src.payload.get<Event::EventPayload::limitedAxesImuUncal>().xSupported;
282 dst->limited_axes_imu_uncalibrated.y_supported =
283 src.payload.get<Event::EventPayload::limitedAxesImuUncal>().ySupported;
284 dst->limited_axes_imu_uncalibrated.z_supported =
285 src.payload.get<Event::EventPayload::limitedAxesImuUncal>().zSupported;
286 break;
287
288 case SensorType::HEADING:
289 dst->heading.heading = src.payload.get<Event::EventPayload::heading>().heading;
290 dst->heading.accuracy = src.payload.get<Event::EventPayload::heading>().accuracy;
291 break;
292
293 default: {
294 CHECK_GE((int32_t)src.sensorType, (int32_t)SensorType::DEVICE_PRIVATE_BASE);
295
296 memcpy(dst->data, src.payload.get<Event::EventPayload::data>().values.data(),
297 16 * sizeof(float));
298 break;
299 }
300 }
301 }
302
convertFromSensorEvent(const sensors_event_t & src,Event * dst)303 void convertFromSensorEvent(const sensors_event_t &src, Event *dst) {
304 *dst = {
305 .timestamp = src.timestamp,
306 .sensorHandle = src.sensor,
307 .sensorType = (SensorType)src.type,
308 };
309
310 switch (dst->sensorType) {
311 case SensorType::META_DATA: {
312 Event::EventPayload::MetaData meta;
313 meta.what = (Event::EventPayload::MetaData::MetaDataEventType)src.meta_data.what;
314 // Legacy HALs contain the handle reference in the meta data field.
315 // Copy that over to the handle of the event. In legacy HALs this
316 // field was expected to be 0.
317 dst->sensorHandle = src.meta_data.sensor;
318 dst->payload.set<Event::EventPayload::Tag::meta>(meta);
319 break;
320 }
321
322 case SensorType::ACCELEROMETER:
323 case SensorType::MAGNETIC_FIELD:
324 case SensorType::ORIENTATION:
325 case SensorType::GYROSCOPE:
326 case SensorType::GRAVITY:
327 case SensorType::LINEAR_ACCELERATION: {
328 Event::EventPayload::Vec3 vec3;
329 vec3.x = src.acceleration.x;
330 vec3.y = src.acceleration.y;
331 vec3.z = src.acceleration.z;
332 vec3.status = (SensorStatus)src.acceleration.status;
333 dst->payload.set<Event::EventPayload::Tag::vec3>(vec3);
334 break;
335 }
336
337 case SensorType::GAME_ROTATION_VECTOR: {
338 Event::EventPayload::Vec4 vec4;
339 vec4.x = src.data[0];
340 vec4.y = src.data[1];
341 vec4.z = src.data[2];
342 vec4.w = src.data[3];
343 dst->payload.set<Event::EventPayload::Tag::vec4>(vec4);
344 break;
345 }
346
347 case SensorType::ROTATION_VECTOR:
348 case SensorType::GEOMAGNETIC_ROTATION_VECTOR: {
349 Event::EventPayload::Data data;
350 memcpy(data.values.data(), src.data, 5 * sizeof(float));
351 dst->payload.set<Event::EventPayload::Tag::data>(data);
352 break;
353 }
354
355 case SensorType::MAGNETIC_FIELD_UNCALIBRATED:
356 case SensorType::GYROSCOPE_UNCALIBRATED:
357 case SensorType::ACCELEROMETER_UNCALIBRATED: {
358 Event::EventPayload::Uncal uncal;
359 uncal.x = src.uncalibrated_gyro.x_uncalib;
360 uncal.y = src.uncalibrated_gyro.y_uncalib;
361 uncal.z = src.uncalibrated_gyro.z_uncalib;
362 uncal.xBias = src.uncalibrated_gyro.x_bias;
363 uncal.yBias = src.uncalibrated_gyro.y_bias;
364 uncal.zBias = src.uncalibrated_gyro.z_bias;
365 dst->payload.set<Event::EventPayload::Tag::uncal>(uncal);
366 break;
367 }
368
369 case SensorType::DEVICE_ORIENTATION:
370 case SensorType::LIGHT:
371 case SensorType::PRESSURE:
372 case SensorType::PROXIMITY:
373 case SensorType::RELATIVE_HUMIDITY:
374 case SensorType::AMBIENT_TEMPERATURE:
375 case SensorType::SIGNIFICANT_MOTION:
376 case SensorType::STEP_DETECTOR:
377 case SensorType::TILT_DETECTOR:
378 case SensorType::WAKE_GESTURE:
379 case SensorType::GLANCE_GESTURE:
380 case SensorType::PICK_UP_GESTURE:
381 case SensorType::WRIST_TILT_GESTURE:
382 case SensorType::STATIONARY_DETECT:
383 case SensorType::MOTION_DETECT:
384 case SensorType::HEART_BEAT:
385 case SensorType::LOW_LATENCY_OFFBODY_DETECT:
386 case SensorType::HINGE_ANGLE: {
387 dst->payload.set<Event::EventPayload::Tag::scalar>((float)src.data[0]);
388 break;
389 }
390
391 case SensorType::STEP_COUNTER: {
392 dst->payload.set<Event::EventPayload::Tag::stepCount>(src.u64.step_counter);
393 break;
394 }
395
396 case SensorType::HEART_RATE: {
397 Event::EventPayload::HeartRate heartRate;
398 heartRate.bpm = src.heart_rate.bpm;
399 heartRate.status = (SensorStatus)src.heart_rate.status;
400 dst->payload.set<Event::EventPayload::Tag::heartRate>(heartRate);
401 break;
402 }
403
404 case SensorType::POSE_6DOF: { // 15 floats
405 Event::EventPayload::Pose6Dof pose6DOF;
406 for (size_t i = 0; i < 15; ++i) {
407 pose6DOF.values[i] = src.data[i];
408 }
409 dst->payload.set<Event::EventPayload::Tag::pose6DOF>(pose6DOF);
410 break;
411 }
412
413 case SensorType::DYNAMIC_SENSOR_META: {
414 DynamicSensorInfo dynamic;
415 dynamic.connected = src.dynamic_sensor_meta.connected;
416 dynamic.sensorHandle = src.dynamic_sensor_meta.handle;
417
418 memcpy(dynamic.uuid.values.data(), src.dynamic_sensor_meta.uuid, 16);
419 dst->payload.set<Event::EventPayload::Tag::dynamic>(dynamic);
420 break;
421 }
422
423 case SensorType::ADDITIONAL_INFO: {
424 AdditionalInfo info;
425 const additional_info_event_t &srcInfo = src.additional_info;
426 info.type = (AdditionalInfo::AdditionalInfoType)srcInfo.type;
427 info.serial = srcInfo.serial;
428
429 AdditionalInfo::AdditionalInfoPayload::Int32Values data;
430 CHECK_EQ(data.values.size() * sizeof(int32_t), sizeof(srcInfo.data_int32));
431 memcpy(data.values.data(), srcInfo.data_int32, sizeof(srcInfo.data_int32));
432 info.payload.set<AdditionalInfo::AdditionalInfoPayload::Tag::dataInt32>(data);
433
434 dst->payload.set<Event::EventPayload::Tag::additional>(info);
435 break;
436 }
437
438 case SensorType::HEAD_TRACKER: {
439 Event::EventPayload::HeadTracker headTracker;
440 headTracker.rx = src.head_tracker.rx;
441 headTracker.ry = src.head_tracker.ry;
442 headTracker.rz = src.head_tracker.rz;
443 headTracker.vx = src.head_tracker.vx;
444 headTracker.vy = src.head_tracker.vy;
445 headTracker.vz = src.head_tracker.vz;
446 headTracker.discontinuityCount = src.head_tracker.discontinuity_count;
447
448 dst->payload.set<Event::EventPayload::Tag::headTracker>(headTracker);
449 break;
450 }
451
452 case SensorType::ACCELEROMETER_LIMITED_AXES:
453 case SensorType::GYROSCOPE_LIMITED_AXES: {
454 Event::EventPayload::LimitedAxesImu limitedAxesImu;
455 limitedAxesImu.x = src.limited_axes_imu.x;
456 limitedAxesImu.y = src.limited_axes_imu.y;
457 limitedAxesImu.z = src.limited_axes_imu.z;
458 limitedAxesImu.xSupported = src.limited_axes_imu.x_supported;
459 limitedAxesImu.ySupported = src.limited_axes_imu.y_supported;
460 limitedAxesImu.zSupported = src.limited_axes_imu.z_supported;
461 dst->payload.set<Event::EventPayload::Tag::limitedAxesImu>(limitedAxesImu);
462 break;
463 }
464
465 case SensorType::ACCELEROMETER_LIMITED_AXES_UNCALIBRATED:
466 case SensorType::GYROSCOPE_LIMITED_AXES_UNCALIBRATED: {
467 Event::EventPayload::LimitedAxesImuUncal limitedAxesImuUncal;
468 limitedAxesImuUncal.x = src.limited_axes_imu_uncalibrated.x_uncalib;
469 limitedAxesImuUncal.y = src.limited_axes_imu_uncalibrated.y_uncalib;
470 limitedAxesImuUncal.z = src.limited_axes_imu_uncalibrated.z_uncalib;
471 limitedAxesImuUncal.xBias = src.limited_axes_imu_uncalibrated.x_bias;
472 limitedAxesImuUncal.yBias = src.limited_axes_imu_uncalibrated.y_bias;
473 limitedAxesImuUncal.zBias = src.limited_axes_imu_uncalibrated.z_bias;
474 limitedAxesImuUncal.xSupported = src.limited_axes_imu_uncalibrated.x_supported;
475 limitedAxesImuUncal.ySupported = src.limited_axes_imu_uncalibrated.y_supported;
476 limitedAxesImuUncal.zSupported = src.limited_axes_imu_uncalibrated.z_supported;
477 dst->payload.set<Event::EventPayload::Tag::limitedAxesImuUncal>(limitedAxesImuUncal);
478 break;
479 }
480
481 case SensorType::HEADING: {
482 Event::EventPayload::Heading heading;
483 heading.heading = src.heading.heading;
484 heading.accuracy = src.heading.accuracy;
485 dst->payload.set<Event::EventPayload::heading>(heading);
486 break;
487 }
488
489 default: {
490 CHECK_GE((int32_t)dst->sensorType, (int32_t)SensorType::DEVICE_PRIVATE_BASE);
491
492 Event::EventPayload::Data data;
493 memcpy(data.values.data(), src.data, 16 * sizeof(float));
494 dst->payload.set<Event::EventPayload::Tag::data>(data);
495 break;
496 }
497 }
498 }
499
serviceDied(void * cookie)500 void serviceDied(void *cookie) {
501 ALOGW("Sensors HAL died, attempting to reconnect.");
502 ((AidlSensorHalWrapper *)cookie)->prepareForReconnect();
503 }
504
505 template <typename EnumType>
asBaseType(EnumType value)506 constexpr typename std::underlying_type<EnumType>::type asBaseType(EnumType value) {
507 return static_cast<typename std::underlying_type<EnumType>::type>(value);
508 }
509
510 enum EventQueueFlagBitsInternal : uint32_t {
511 INTERNAL_WAKE = 1 << 16,
512 };
513
514 } // anonymous namespace
515
516 class AidlSensorsCallback : public ::aidl::android::hardware::sensors::BnSensorsCallback {
517 public:
AidlSensorsCallback(AidlSensorHalWrapper::SensorDeviceCallback * sensorDeviceCallback)518 AidlSensorsCallback(AidlSensorHalWrapper::SensorDeviceCallback *sensorDeviceCallback)
519 : mSensorDeviceCallback(sensorDeviceCallback) {}
520
onDynamicSensorsConnected(const std::vector<SensorInfo> & sensorInfos)521 ::ndk::ScopedAStatus onDynamicSensorsConnected(
522 const std::vector<SensorInfo> &sensorInfos) override {
523 std::vector<sensor_t> sensors;
524 for (const SensorInfo &sensorInfo : sensorInfos) {
525 sensor_t sensor;
526 convertToSensor(sensorInfo, &sensor);
527 sensors.push_back(sensor);
528 }
529
530 mSensorDeviceCallback->onDynamicSensorsConnected(sensors);
531 return ::ndk::ScopedAStatus::ok();
532 }
533
onDynamicSensorsDisconnected(const std::vector<int32_t> & sensorHandles)534 ::ndk::ScopedAStatus onDynamicSensorsDisconnected(
535 const std::vector<int32_t> &sensorHandles) override {
536 mSensorDeviceCallback->onDynamicSensorsDisconnected(sensorHandles);
537 return ::ndk::ScopedAStatus::ok();
538 }
539
540 private:
541 ISensorHalWrapper::SensorDeviceCallback *mSensorDeviceCallback;
542 };
543
AidlSensorHalWrapper()544 AidlSensorHalWrapper::AidlSensorHalWrapper()
545 : mEventQueueFlag(nullptr),
546 mWakeLockQueueFlag(nullptr),
547 mDeathRecipient(AIBinder_DeathRecipient_new(serviceDied)) {}
548
supportsPolling()549 bool AidlSensorHalWrapper::supportsPolling() {
550 return false;
551 }
552
supportsMessageQueues()553 bool AidlSensorHalWrapper::supportsMessageQueues() {
554 return true;
555 }
556
connect(SensorDeviceCallback * callback)557 bool AidlSensorHalWrapper::connect(SensorDeviceCallback *callback) {
558 mSensorDeviceCallback = callback;
559 mSensors = nullptr;
560
561 auto aidlServiceName = std::string() + ISensors::descriptor + "/default";
562 if (AServiceManager_isDeclared(aidlServiceName.c_str())) {
563 if (mSensors != nullptr) {
564 AIBinder_unlinkToDeath(mSensors->asBinder().get(), mDeathRecipient.get(), this);
565 }
566
567 ndk::SpAIBinder binder(AServiceManager_waitForService(aidlServiceName.c_str()));
568 if (binder.get() != nullptr) {
569 mSensors = ISensors::fromBinder(binder);
570 mEventQueue = std::make_unique<AidlMessageQueue<
571 Event, SynchronizedReadWrite>>(MAX_RECEIVE_BUFFER_EVENT_COUNT,
572 /*configureEventFlagWord=*/true);
573
574 mWakeLockQueue = std::make_unique<AidlMessageQueue<
575 int32_t, SynchronizedReadWrite>>(MAX_RECEIVE_BUFFER_EVENT_COUNT,
576 /*configureEventFlagWord=*/true);
577 if (mEventQueueFlag != nullptr) {
578 EventFlag::deleteEventFlag(&mEventQueueFlag);
579 }
580 EventFlag::createEventFlag(mEventQueue->getEventFlagWord(), &mEventQueueFlag);
581 if (mWakeLockQueueFlag != nullptr) {
582 EventFlag::deleteEventFlag(&mWakeLockQueueFlag);
583 }
584 EventFlag::createEventFlag(mWakeLockQueue->getEventFlagWord(), &mWakeLockQueueFlag);
585
586 CHECK(mEventQueue != nullptr && mEventQueueFlag != nullptr &&
587 mWakeLockQueue != nullptr && mWakeLockQueueFlag != nullptr);
588
589 mCallback = ndk::SharedRefBase::make<AidlSensorsCallback>(mSensorDeviceCallback);
590 mSensors->initialize(mEventQueue->dupeDesc(), mWakeLockQueue->dupeDesc(), mCallback);
591
592 AIBinder_linkToDeath(mSensors->asBinder().get(), mDeathRecipient.get(), this);
593 } else {
594 ALOGE("Could not connect to declared sensors AIDL HAL");
595 }
596 }
597
598 return mSensors != nullptr;
599 }
600
prepareForReconnect()601 void AidlSensorHalWrapper::prepareForReconnect() {
602 mReconnecting = true;
603 if (mEventQueueFlag != nullptr) {
604 mEventQueueFlag->wake(asBaseType(INTERNAL_WAKE));
605 }
606 }
607
poll(sensors_event_t *,size_t)608 ssize_t AidlSensorHalWrapper::poll(sensors_event_t * /* buffer */, size_t /* count */) {
609 return 0;
610 }
611
pollFmq(sensors_event_t * buffer,size_t maxNumEventsToRead)612 ssize_t AidlSensorHalWrapper::pollFmq(sensors_event_t *buffer, size_t maxNumEventsToRead) {
613 ssize_t eventsRead = 0;
614 size_t availableEvents = mEventQueue->availableToRead();
615
616 if (availableEvents == 0) {
617 uint32_t eventFlagState = 0;
618
619 // Wait for events to become available. This is necessary so that the Event FMQ's read() is
620 // able to be called with the correct number of events to read. If the specified number of
621 // events is not available, then read() would return no events, possibly introducing
622 // additional latency in delivering events to applications.
623 if (mEventQueueFlag != nullptr) {
624 mEventQueueFlag->wait(asBaseType(ISensors::EVENT_QUEUE_FLAG_BITS_READ_AND_PROCESS) |
625 asBaseType(INTERNAL_WAKE),
626 &eventFlagState);
627 }
628 availableEvents = mEventQueue->availableToRead();
629
630 if ((eventFlagState & asBaseType(INTERNAL_WAKE)) && mReconnecting) {
631 ALOGD("Event FMQ internal wake, returning from poll with no events");
632 return DEAD_OBJECT;
633 }
634 }
635
636 size_t eventsToRead = std::min({availableEvents, maxNumEventsToRead, mEventBuffer.size()});
637 if (eventsToRead > 0) {
638 if (mEventQueue->read(mEventBuffer.data(), eventsToRead)) {
639 // Notify the Sensors HAL that sensor events have been read. This is required to support
640 // the use of writeBlocking by the Sensors HAL.
641 if (mEventQueueFlag != nullptr) {
642 mEventQueueFlag->wake(asBaseType(ISensors::EVENT_QUEUE_FLAG_BITS_EVENTS_READ));
643 }
644
645 for (size_t i = 0; i < eventsToRead; i++) {
646 convertToSensorEvent(mEventBuffer[i], &buffer[i]);
647 }
648 eventsRead = eventsToRead;
649 } else {
650 ALOGW("Failed to read %zu events, currently %zu events available", eventsToRead,
651 availableEvents);
652 }
653 }
654
655 return eventsRead;
656 }
657
getSensorsList()658 std::vector<sensor_t> AidlSensorHalWrapper::getSensorsList() {
659 std::vector<sensor_t> sensorsFound;
660
661 if (mSensors != nullptr) {
662 std::vector<SensorInfo> list;
663 mSensors->getSensorsList(&list);
664 for (size_t i = 0; i < list.size(); i++) {
665 sensor_t sensor;
666 convertToSensor(list[i], &sensor);
667 sensorsFound.push_back(sensor);
668 }
669 }
670
671 return sensorsFound;
672 }
673
setOperationMode(SensorService::Mode mode)674 status_t AidlSensorHalWrapper::setOperationMode(SensorService::Mode mode) {
675 if (mSensors == nullptr) return NO_INIT;
676 return convertToStatus(mSensors->setOperationMode(static_cast<ISensors::OperationMode>(mode)));
677 }
678
activate(int32_t sensorHandle,bool enabled)679 status_t AidlSensorHalWrapper::activate(int32_t sensorHandle, bool enabled) {
680 if (mSensors == nullptr) return NO_INIT;
681 return convertToStatus(mSensors->activate(sensorHandle, enabled));
682 }
683
batch(int32_t sensorHandle,int64_t samplingPeriodNs,int64_t maxReportLatencyNs)684 status_t AidlSensorHalWrapper::batch(int32_t sensorHandle, int64_t samplingPeriodNs,
685 int64_t maxReportLatencyNs) {
686 if (mSensors == nullptr) return NO_INIT;
687 return convertToStatus(mSensors->batch(sensorHandle, samplingPeriodNs, maxReportLatencyNs));
688 }
689
flush(int32_t sensorHandle)690 status_t AidlSensorHalWrapper::flush(int32_t sensorHandle) {
691 if (mSensors == nullptr) return NO_INIT;
692 return convertToStatus(mSensors->flush(sensorHandle));
693 }
694
injectSensorData(const sensors_event_t * event)695 status_t AidlSensorHalWrapper::injectSensorData(const sensors_event_t *event) {
696 if (mSensors == nullptr) return NO_INIT;
697
698 Event ev;
699 convertFromSensorEvent(*event, &ev);
700 return convertToStatus(mSensors->injectSensorData(ev));
701 }
702
registerDirectChannel(const sensors_direct_mem_t * memory,int32_t * channelHandle)703 status_t AidlSensorHalWrapper::registerDirectChannel(const sensors_direct_mem_t *memory,
704 int32_t *channelHandle) {
705 if (mSensors == nullptr) return NO_INIT;
706
707 ISensors::SharedMemInfo::SharedMemType type;
708 switch (memory->type) {
709 case SENSOR_DIRECT_MEM_TYPE_ASHMEM:
710 type = ISensors::SharedMemInfo::SharedMemType::ASHMEM;
711 break;
712 case SENSOR_DIRECT_MEM_TYPE_GRALLOC:
713 type = ISensors::SharedMemInfo::SharedMemType::GRALLOC;
714 break;
715 default:
716 return BAD_VALUE;
717 }
718
719 if (memory->format != SENSOR_DIRECT_FMT_SENSORS_EVENT) {
720 return BAD_VALUE;
721 }
722 ISensors::SharedMemInfo::SharedMemFormat format =
723 ISensors::SharedMemInfo::SharedMemFormat::SENSORS_EVENT;
724
725 ISensors::SharedMemInfo mem = {
726 .type = type,
727 .format = format,
728 .size = static_cast<int32_t>(memory->size),
729 .memoryHandle = dupToAidl(memory->handle),
730 };
731
732 return convertToStatus(mSensors->registerDirectChannel(mem, channelHandle));
733 }
734
unregisterDirectChannel(int32_t channelHandle)735 status_t AidlSensorHalWrapper::unregisterDirectChannel(int32_t channelHandle) {
736 if (mSensors == nullptr) return NO_INIT;
737 return convertToStatus(mSensors->unregisterDirectChannel(channelHandle));
738 }
739
configureDirectChannel(int32_t sensorHandle,int32_t channelHandle,const struct sensors_direct_cfg_t * config)740 status_t AidlSensorHalWrapper::configureDirectChannel(int32_t sensorHandle, int32_t channelHandle,
741 const struct sensors_direct_cfg_t *config) {
742 if (mSensors == nullptr) return NO_INIT;
743
744 ISensors::RateLevel rate;
745 switch (config->rate_level) {
746 case SENSOR_DIRECT_RATE_STOP:
747 rate = ISensors::RateLevel::STOP;
748 break;
749 case SENSOR_DIRECT_RATE_NORMAL:
750 rate = ISensors::RateLevel::NORMAL;
751 break;
752 case SENSOR_DIRECT_RATE_FAST:
753 rate = ISensors::RateLevel::FAST;
754 break;
755 case SENSOR_DIRECT_RATE_VERY_FAST:
756 rate = ISensors::RateLevel::VERY_FAST;
757 break;
758 default:
759 return BAD_VALUE;
760 }
761
762 int32_t token;
763 mSensors->configDirectReport(sensorHandle, channelHandle, rate, &token);
764 return token;
765 }
766
writeWakeLockHandled(uint32_t count)767 void AidlSensorHalWrapper::writeWakeLockHandled(uint32_t count) {
768 int signedCount = (int)count;
769 if (mWakeLockQueue->write(&signedCount)) {
770 mWakeLockQueueFlag->wake(asBaseType(ISensors::WAKE_LOCK_QUEUE_FLAG_BITS_DATA_WRITTEN));
771 } else {
772 ALOGW("Failed to write wake lock handled");
773 }
774 }
775
776 } // namespace android
777