Line data Source code
1 : // SPDX-FileCopyrightText: 2022-2025 Paul Colby <git@colby.id.au>
2 : // SPDX-License-Identifier: LGPL-3.0-or-later
3 :
4 : /*!
5 : * \file
6 : * Defines the PokitDevice and PokitDevicePrivate classes.
7 : */
8 :
9 : #include <qtpokit/pokitdevice.h>
10 :
11 : #include <qtpokit/calibrationservice.h>
12 : #include <qtpokit/dataloggerservice.h>
13 : #include <qtpokit/deviceinfoservice.h>
14 : #include <qtpokit/dsoservice.h>
15 : #include <qtpokit/multimeterservice.h>
16 : #include <qtpokit/statusservice.h>
17 :
18 : #include "pokitdevice_p.h"
19 : #include "../stringliterals_p.h"
20 :
21 : #include <QMutexLocker>
22 :
23 : QTPOKIT_BEGIN_NAMESPACE
24 : DOKIT_USE_STRINGLITERALS
25 :
26 : /*!
27 : * \class PokitDevice
28 : *
29 : * The PokitDevice class simplifies Pokit device access.
30 : *
31 : * It does this by wrapping QLowEnergyController to provide:
32 : * * convenient Pokit service factory methods (dataLogger(), deviceInformation(), dso(),
33 : multimeter() and status()); and
34 : * * consistent debug logging of QLowEnergyController events.
35 : *
36 : * But this class is entirely optional, in that all features of all other QtPokit classes can be
37 : * used without this class. It's just a (meaningful) convenience.
38 : */
39 :
40 : /*!
41 : * Constructs a new Pokit device controller wrapper for \a deviceInfo, with \a parent.
42 : *
43 : * Though not strictly necessary, \a deviceInfo should normally come from a
44 : * PokitDiscoveryAgent instance (or a QBluetoothDeviceDiscoveryAgent), otherwise connection
45 : * is likely to fail with QLowEnergyController::UnknownRemoteDeviceError.
46 : */
47 2210 : PokitDevice::PokitDevice(const QBluetoothDeviceInfo &deviceInfo, QObject *parent)
48 3026 : : QObject(parent), d_ptr(new PokitDevicePrivate(this))
49 816 : {
50 816 : Q_D(PokitDevice);
51 3026 : d->setController(QLowEnergyController::createCentral(deviceInfo, this));
52 3026 : }
53 :
54 : /*!
55 : * Constructs a new Pokit device controller wrapper for \a controller, with \a parent.
56 : */
57 1105 : PokitDevice::PokitDevice(QLowEnergyController *controller, QObject *parent)
58 1993 : : QObject(parent), d_ptr(new PokitDevicePrivate(this))
59 1128 : {
60 1128 : Q_D(PokitDevice);
61 2233 : d->setController(controller);
62 2233 : }
63 :
64 : /*!
65 : * \cond internal
66 : * Constructs a new Pokit device controller wrapper with \a parent, and private implementation \a d.
67 : *
68 : * Derived classes using this constructor should use PokitDevicePrivate::setController to assign
69 : * the BLE controller as some point.
70 : */
71 0 : PokitDevice::PokitDevice(PokitDevicePrivate * const d, QObject * const parent)
72 0 : : QObject(parent), d_ptr(d)
73 0 : {
74 :
75 0 : }
76 : /// \endcond
77 :
78 : /*!
79 : * Destroys this PokitDevice object.
80 : */
81 5525 : PokitDevice::~PokitDevice()
82 1944 : {
83 5259 : delete d_ptr;
84 7469 : }
85 :
86 : /*!
87 : * Returns a non-const pointer to the controller used to access the Pokit device.
88 : */
89 4160 : QLowEnergyController * PokitDevice::controller()
90 1584 : {
91 1584 : Q_D(PokitDevice);
92 5744 : return d->controller;
93 1584 : }
94 :
95 : /*!
96 : * Returns a const pointer to the controller used to access the Pokit device.
97 : */
98 65 : const QLowEnergyController * PokitDevice::controller() const
99 72 : {
100 72 : Q_D(const PokitDevice);
101 137 : return d->controller;
102 72 : }
103 :
104 : /// \cond
105 : #define QTPOKIT_INTERNAL_GET_SERVICE(typeName, varName) \
106 2544 : Q_D(PokitDevice); \
107 2544 : const QMutexLocker scopedLock(&d->varName##Mutex);\
108 2544 : if (d->varName == nullptr) { \
109 1248 : d->varName = new typeName(d->controller); \
110 1248 : } \
111 2544 : return d->varName \
112 : /// \endcond
113 :
114 : /*!
115 : * Returns a pointer to a CalibrationService instance that uses this device's controller for access.
116 : *
117 : * This is a convenience function, that always returns the same pointer (for this PokitDevice
118 : * instance), but the service itself is lazily created (in a threadsafe manner) on the first
119 : * invocation of this function.
120 : */
121 260 : CalibrationService * PokitDevice::calibration()
122 288 : {
123 872 : QTPOKIT_INTERNAL_GET_SERVICE(CalibrationService, calibration);
124 288 : }
125 :
126 : /*!
127 : * Returns a pointer to a DataLoggerService instance that uses this device's controller for access.
128 : *
129 : * This is a convenience function, that always returns the same pointer (for this PokitDevice
130 : * instance), but the service itself is lazily created (in a threadsafe manner) on the first
131 : * invocation of this function.
132 : */
133 260 : DataLoggerService * PokitDevice::dataLogger()
134 288 : {
135 872 : QTPOKIT_INTERNAL_GET_SERVICE(DataLoggerService, dataLogger);
136 288 : }
137 :
138 : /*!
139 : * Returns a pointer to DeviceInformationService instance that uses this device's controller for
140 : * access.
141 : *
142 : * This is a convenience function, that always returns the same pointer (for this PokitDevice
143 : * instance), but the service itself is lazily created (in a threadsafe manner) on the first
144 : * invocation of this function.
145 : */
146 1820 : DeviceInfoService * PokitDevice::deviceInformation()
147 864 : {
148 4952 : QTPOKIT_INTERNAL_GET_SERVICE(DeviceInfoService, deviceInfo);
149 864 : }
150 :
151 : /*!
152 : * Returns a pointer to DsoService instance that uses this device's controller for access.
153 : *
154 : * This is a convenience function, that always returns the same pointer (for this PokitDevice
155 : * instance), but the service itself is lazily created (in a threadsafe manner) on the first
156 : * invocation of this function.
157 : */
158 260 : DsoService * PokitDevice::dso()
159 288 : {
160 872 : QTPOKIT_INTERNAL_GET_SERVICE(DsoService, dso);
161 288 : }
162 :
163 : /*!
164 : * Returns a pointer to MultimeterService instance that uses this device's controller for access.
165 : *
166 : * This is a convenience function, that always returns the same pointer (for this PokitDevice
167 : * instance), but the service itself is lazily created (in a threadsafe manner) on the first
168 : * invocation of this function.
169 : */
170 260 : MultimeterService * PokitDevice::multimeter()
171 288 : {
172 872 : QTPOKIT_INTERNAL_GET_SERVICE(MultimeterService, multimeter);
173 288 : }
174 :
175 : /*!
176 : * Returns a pointer to StatusService instance that uses this device's controller for access.
177 : *
178 : * This is a convenience function, that always returns the same pointer (for this PokitDevice
179 : * instance), but the service itself is lazily created (in a threadsafe manner) on the first
180 : * invocation of this function.
181 : */
182 910 : StatusService * PokitDevice::status()
183 528 : {
184 2572 : QTPOKIT_INTERNAL_GET_SERVICE(StatusService, status);
185 528 : }
186 : #undef QTPOKIT_INTERNAL_GET_SERVICE
187 :
188 : /*!
189 : * Returns a human-readable name for the \a uuid service, or a null QString if unknown.
190 : *
191 : * This is equivalent to QBluetoothUuid::serviceClassToString() but for services provided by Pokit
192 : * devices.
193 : */
194 650 : QString PokitDevice::serviceToString(const QBluetoothUuid &uuid)
195 720 : {
196 720 : static const QHash<QBluetoothUuid, QString> hash{
197 800 : { CalibrationService::serviceUuid, tr("Calibration") },
198 785 : { DataLoggerService::serviceUuid, tr("Data Logger") },
199 785 : { DsoService::serviceUuid, tr("DSO") },
200 785 : { MultimeterService::serviceUuid, tr("Multimeter") },
201 785 : { StatusService::ServiceUuids::pokitMeter, tr("Status (Pokit Meter)") },
202 785 : { StatusService::ServiceUuids::pokitPro, tr("Status (Pokit Pro)") },
203 720 : { DeviceInfoService::serviceUuid,
204 850 : QBluetoothUuid::serviceClassToString(QBluetoothUuid::ServiceClassUuid::DeviceInformation) },
205 :
206 : // The following are not specifically supported by this library, but strings provided for nicer debug output.
207 720 : { QBluetoothUuid::ServiceClassUuid::GenericAccess,
208 850 : QBluetoothUuid::serviceClassToString(QBluetoothUuid::ServiceClassUuid::GenericAccess) },
209 720 : { QBluetoothUuid::ServiceClassUuid::GenericAttribute,
210 850 : QBluetoothUuid::serviceClassToString(QBluetoothUuid::ServiceClassUuid::GenericAttribute) },
211 825 : { QBluetoothUuid(u"1d14d6ee-fd63-4fa1-bfa4-8f47b42119f0"_s), tr("OTA Firmware Update") },
212 2131 : };
213 1410 : return hash.value(uuid);
214 720 : }
215 :
216 : /*!
217 : * Returns a human-readable name for the \a uuid characteristic, or a null QString if unknown.
218 : *
219 : * This is equivalent to QBluetoothUuid::characteristicToString() but for characteristics provided
220 : * by Pokit devices.
221 : */
222 1430 : QString PokitDevice::charcteristicToString(const QBluetoothUuid &uuid)
223 1584 : {
224 1584 : static const QHash<QBluetoothUuid, QString> hash{
225 1664 : { CalibrationService::CharacteristicUuids::temperature, tr("Temperature") },
226 1649 : { CalibrationService::CharacteristicUuids::getParam, tr("Get Param") },
227 1649 : { CalibrationService::CharacteristicUuids::setParam, tr("Set Param") },
228 :
229 1649 : { DataLoggerService::CharacteristicUuids::metadata, tr("Metadata") },
230 1649 : { DataLoggerService::CharacteristicUuids::reading, tr("Reading") },
231 1649 : { DataLoggerService::CharacteristicUuids::settings, tr("Settings") },
232 :
233 1649 : { DsoService::CharacteristicUuids::metadata, tr("Metadata") },
234 1649 : { DsoService::CharacteristicUuids::reading, tr("Reading") },
235 1649 : { DsoService::CharacteristicUuids::settings, tr("Settings") },
236 :
237 1649 : { MultimeterService::CharacteristicUuids::reading, tr("Reading") },
238 1649 : { MultimeterService::CharacteristicUuids::settings, tr("Settings") },
239 :
240 1649 : { StatusService::CharacteristicUuids::deviceCharacteristics, tr("Device Characteristics") },
241 1649 : { StatusService::CharacteristicUuids::flashLed, tr("Flash LED") },
242 1649 : { StatusService::CharacteristicUuids::name, tr("Name") },
243 1649 : { StatusService::CharacteristicUuids::status, tr("Status") },
244 1649 : { StatusService::CharacteristicUuids::torch, tr("Torch") },
245 1649 : { StatusService::CharacteristicUuids::buttonPress, tr("Button Press") },
246 :
247 1584 : { DeviceInfoService::CharacteristicUuids::firmwareRevision,
248 1714 : QBluetoothUuid::characteristicToString(QBluetoothUuid::CharacteristicType::FirmwareRevisionString) },
249 1584 : { DeviceInfoService::CharacteristicUuids::hardwareRevision,
250 1714 : QBluetoothUuid::characteristicToString(QBluetoothUuid::CharacteristicType::HardwareRevisionString) },
251 1584 : { DeviceInfoService::CharacteristicUuids::manufacturerName,
252 1714 : QBluetoothUuid::characteristicToString(QBluetoothUuid::CharacteristicType::ManufacturerNameString) },
253 1584 : { DeviceInfoService::CharacteristicUuids::modelNumber,
254 1714 : QBluetoothUuid::characteristicToString(QBluetoothUuid::CharacteristicType::ModelNumberString) },
255 1584 : { DeviceInfoService::CharacteristicUuids::softwareRevision,
256 1714 : QBluetoothUuid::characteristicToString(QBluetoothUuid::CharacteristicType::SoftwareRevisionString) },
257 1584 : { DeviceInfoService::CharacteristicUuids::serialNumber,
258 1714 : QBluetoothUuid::characteristicToString(QBluetoothUuid::CharacteristicType::SerialNumberString) },
259 :
260 : // The next two are not specifically supported by this library, but strings provided for nicer debug output.
261 1689 : { QBluetoothUuid(u"f7bf3564-fb6d-4e53-88a4-5e37e0326063"_s), tr("OTA Control") },
262 1689 : { QBluetoothUuid(u"984227f3-34fc-4045-a5d0-2c581f81a153"_s), tr("OTA Data Transfer") },
263 4750 : };
264 3102 : return hash.value(uuid);
265 1584 : }
266 :
267 : /*!
268 : * \cond internal
269 : * \class PokitDevicePrivate
270 : *
271 : * The PokitDevicePrivate class provides private implementation for PokitDevice.
272 : */
273 :
274 : /*!
275 : * Constructs a new PokitDevicePrivate object with public implementation \a q.
276 : */
277 5019 : PokitDevicePrivate::PokitDevicePrivate(PokitDevice * const q) : q_ptr(q)
278 1944 : {
279 :
280 5259 : }
281 :
282 : /*!
283 : * Sets \a newController to be used for accessing Pokit devices.
284 : *
285 : * If a controller has already been set (and is not the same pointer), then the previous controller
286 : * will be disconnected, and replaced with \a newController.
287 : *
288 : * This function will not take ownership of the new controller. The caller is responsible for
289 : * ensuring that \a newContorller remains valid for the lifetime of this instance, or until this
290 : * function is used again to replace \a newController with another one (which may be a nullptr).
291 : *
292 : * \see controller
293 : * \see PokitDevice::controller()
294 : */
295 3770 : void PokitDevicePrivate::setController(QLowEnergyController * newController)
296 2112 : {
297 5882 : if (newController == this->controller) {
298 2962 : qCDebug(lc).noquote() << tr("Controller already set to:") << newController;
299 1860 : return;
300 1176 : }
301 :
302 3471 : if (this->controller) {
303 354 : qCDebug(lc).noquote() << tr("Disconnecting signals from previous controller:")
304 0 : << controller;
305 267 : disconnect(this->controller, nullptr, this, nullptr);
306 72 : }
307 :
308 4602 : qCDebug(lc).noquote() << tr("Setting new controller:") << newController;
309 3471 : this->controller = newController;
310 3471 : if (!newController) {
311 48 : return; // Don't bother continuing to connect if new controller is null.
312 48 : }
313 :
314 4366 : qCDebug(lc).noquote() << tr(R"(Set new controller "%1" (%2) at (%3).)").arg(
315 0 : controller->remoteName(), controller->remoteDeviceUuid().toString(),
316 0 : controller->remoteAddress().toString());
317 :
318 3293 : connect(controller, &QLowEnergyController::connected,
319 1813 : this, &PokitDevicePrivate::connected);
320 :
321 3293 : connect(controller, &QLowEnergyController::connectionUpdated,
322 1813 : this, &PokitDevicePrivate::connectionUpdated);
323 :
324 3293 : connect(controller, &QLowEnergyController::disconnected,
325 1813 : this, &PokitDevicePrivate::disconnected);
326 :
327 3293 : connect(controller, &QLowEnergyController::discoveryFinished,
328 1813 : this, &PokitDevicePrivate::discoveryFinished);
329 :
330 :
331 3293 : connect(controller,
332 333 : #if (QT_VERSION < QT_VERSION_CHECK(6, 2, 0))
333 333 : QOverload<QLowEnergyController::Error>::of(&QLowEnergyController::error),
334 : #else
335 555 : &QLowEnergyController::errorOccurred,
336 555 : #endif
337 1813 : this, &PokitDevicePrivate::errorOccurred);
338 :
339 :
340 3293 : connect(controller, &QLowEnergyController::serviceDiscovered,
341 1813 : this, &PokitDevicePrivate::serviceDiscovered);
342 :
343 3293 : connect(controller, &QLowEnergyController::stateChanged,
344 2738 : this, &PokitDevicePrivate::stateChanged);
345 888 : }
346 :
347 : /*!
348 : * Handle connected signals.
349 : */
350 195 : void PokitDevicePrivate::connected() const
351 72 : {
352 267 : if (controller == nullptr) {
353 448 : qCCritical(lc).noquote() << tr("PokitDevicePrivate::connected slot invoked without a controller.");
354 120 : return; // Just to avoid the nullptr dereference below.
355 48 : }
356 118 : qCDebug(lc).noquote() << tr(R"(Connected to "%1" (%2) at (%3).)").arg(
357 0 : controller->remoteName(), controller->remoteDeviceUuid().toString(),
358 0 : controller->remoteAddress().toString());
359 24 : }
360 :
361 : /*!
362 : * Handle connectionUpdated signals.
363 : */
364 65 : void PokitDevicePrivate::connectionUpdated(const QLowEnergyConnectionParameters &newParameters) const
365 72 : {
366 166 : qCDebug(lc).noquote() << tr("Connection updated:") << newParameters.latency()
367 0 : << newParameters.minimumInterval() << newParameters.maximumInterval()
368 0 : << newParameters.supervisionTimeout();
369 137 : }
370 :
371 : /*!
372 : * Handle disconnected signals.
373 : */
374 65 : void PokitDevicePrivate::disconnected() const
375 72 : {
376 166 : qCDebug(lc).noquote() << tr("Device disconnected.");
377 137 : }
378 :
379 : /*!
380 : * Handle discoveryFinished signals.
381 : */
382 65 : void PokitDevicePrivate::discoveryFinished() const
383 72 : {
384 166 : qCDebug(lc).noquote() << tr("Service discovery finished.");
385 137 : }
386 :
387 : /*!
388 : * Handle error signals.
389 : */
390 65 : void PokitDevicePrivate::errorOccurred(QLowEnergyController::Error newError) const
391 72 : {
392 166 : qCDebug(lc).noquote() << tr("Controller error:") << newError;
393 137 : }
394 :
395 : /*!
396 : * Handle serviceDiscovered signals.
397 : */
398 65 : void PokitDevicePrivate::serviceDiscovered(const QBluetoothUuid &newService) const
399 72 : {
400 166 : qCDebug(lc).noquote() << tr(R"(Service discovered: %1 "%2")")
401 0 : .arg(newService.toString(), PokitDevice::serviceToString(newService));
402 137 : }
403 :
404 : /*!
405 : * Handle stateChanged signals.
406 : */
407 65 : void PokitDevicePrivate::stateChanged(QLowEnergyController::ControllerState state) const
408 72 : {
409 166 : qCDebug(lc).noquote() << tr("State changed to:") << state;
410 137 : }
411 :
412 : /// \endcond
413 :
414 : QTPOKIT_END_NAMESPACE
|
