Solid

winbattery.cpp
1/*
2 SPDX-FileCopyrightText: 2013 Patrick von Reth <vonreth@kde.org>
3
4 SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
5*/
6#include "winbattery.h"
7#include "windevicemanager_p.h"
8
9#include <batclass.h>
10#include <devguid.h>
11#include <devpropdef.h>
12#include <setupapi.h>
13
14using namespace Solid::Backends::Win;
15
16QMap<QString, WinBattery::Battery> WinBattery::m_udiToGDI = QMap<QString, WinBattery::Battery>();
17
18WinBattery::WinBattery(WinDevice *device)
19 : WinInterface(device)
20 , m_state(Solid::Battery::NoCharge)
21{
22 powerChanged();
23 connect(SolidWinEventFilter::instance(), SIGNAL(powerChanged()), this, SLOT(powerChanged()));
24}
25
26Solid::Battery::BatteryType WinBattery::type() const
27{
28 return m_type;
29}
30
31int WinBattery::chargePercent() const
32{
33 return m_charge;
34}
35
36int WinBattery::capacity() const
37{
38 return m_capacity;
39}
40
41int WinBattery::cycleCount() const
42{
43 return m_cycleCount;
44}
45
46bool WinBattery::isRechargeable() const
47{
48 return m_rechargeable;
49}
50
51bool WinBattery::isPowerSupply() const
52{
53 return m_isPowerSupply;
54}
55
56Solid::Battery::ChargeState WinBattery::chargeState() const
57{
58 return m_state;
59}
60
61QSet<QString> WinBattery::getUdis()
62{
63 QSet<QString> udis;
64 HDEVINFO hdev = SetupDiGetClassDevs(&GUID_DEVCLASS_BATTERY, 0, 0, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
65
66 if (INVALID_HANDLE_VALUE != hdev) {
67 // Limit search to 100 batteries max
68 for (int idev = 0; idev < 100; idev++) {
69 SP_DEVICE_INTERFACE_DATA did;
70 ZeroMemory(&did, sizeof(did));
71 did.cbSize = sizeof(did);
72
73 if (SetupDiEnumDeviceInterfaces(hdev, 0, &GUID_DEVCLASS_BATTERY, idev, &did)) {
74 DWORD cbRequired = 0;
75
76 SetupDiGetDeviceInterfaceDetailW(hdev, &did, 0, 0, &cbRequired, 0);
77 if (ERROR_INSUFFICIENT_BUFFER == GetLastError()) {
78 char *buffer = new char[cbRequired];
79 SP_DEVICE_INTERFACE_DETAIL_DATA *pdidd = (SP_DEVICE_INTERFACE_DETAIL_DATA *)buffer;
80 ZeroMemory(pdidd, cbRequired);
81 pdidd->cbSize = sizeof(*pdidd);
82 if (SetupDiGetDeviceInterfaceDetail(hdev, &did, pdidd, cbRequired, &cbRequired, 0)) {
83 QString path = QString::fromWCharArray(pdidd->DevicePath);
84 ulong tag = WinDeviceManager::getDeviceInfo<ulong>(path, IOCTL_BATTERY_QUERY_TAG);
85 QString udi = QLatin1String("/org/kde/solid/win/power.battery/battery#") + QString::number(tag);
86 udis << udi;
87 m_udiToGDI[udi] = Battery(path, tag);
88 }
89 delete[] buffer;
90 }
91 }
92 }
93
94 SetupDiDestroyDeviceInfoList(hdev);
95 }
96 return udis;
97}
98
99const WinBattery::Battery WinBattery::batteryInfoFromUdi(const QString &udi)
100{
101 return m_udiToGDI[udi];
102}
103
104void WinBattery::powerChanged()
105{
106 const int old_charge = m_charge;
107 const int old_capacity = m_capacity;
108 const int old_cyleCount = m_cycleCount;
109 const Solid::Battery::ChargeState old_state = m_state;
110 const bool old_isPowerSupply = m_isPowerSupply;
111 const double old_energy = m_energy;
112 const double old_energyFull = m_energyFull;
113 const double old_energyFullDesign = m_energyFullDesign;
114 const double old_energyRate = m_energyRate;
115 const double old_voltage = m_voltage;
116
117 BATTERY_WAIT_STATUS batteryStatusQuery;
118 ZeroMemory(&batteryStatusQuery, sizeof(batteryStatusQuery));
119 Battery b = m_udiToGDI[m_device->udi()];
120 batteryStatusQuery.BatteryTag = b.second;
121 BATTERY_STATUS status = WinDeviceManager::getDeviceInfo<BATTERY_STATUS, BATTERY_WAIT_STATUS>(b.first, IOCTL_BATTERY_QUERY_STATUS, &batteryStatusQuery);
122
123 BATTERY_QUERY_INFORMATION batteryInformationQuery;
124 ZeroMemory(&batteryInformationQuery, sizeof(batteryInformationQuery));
125 batteryInformationQuery.BatteryTag = b.second;
126 batteryInformationQuery.InformationLevel = BatteryInformation;
127 BATTERY_INFORMATION info =
128 WinDeviceManager::getDeviceInfo<BATTERY_INFORMATION, BATTERY_QUERY_INFORMATION>(b.first, IOCTL_BATTERY_QUERY_INFORMATION, &batteryInformationQuery);
129
130 initSerial(b);
131 updateBatteryTemp(b);
132 updateTimeToEmpty(b);
133
134 m_isPowerSupply = !(status.PowerState & BATTERY_POWER_ON_LINE);
135
136 QString tech = QString::fromUtf8((const char *)info.Chemistry, 4);
137
138 if (tech == QLatin1String("LION") || tech == QLatin1String("LI-I")) {
139 m_technology = Solid::Battery::LithiumIon;
140 } else if (tech == QLatin1String("PBAC")) {
141 m_technology = Solid::Battery::LeadAcid;
142 } else if (tech == QLatin1String("NICD")) {
143 m_technology = Solid::Battery::NickelCadmium;
144 } else if (tech == QLatin1String("NIMH")) {
145 m_technology = Solid::Battery::NickelMetalHydride;
146 } else {
147 m_technology = Solid::Battery::UnknownTechnology;
148 }
149
150 m_energy = status.Capacity / 1000.0; // provided in mWh
151 m_energyFull = info.FullChargedCapacity / 1000.0; // provided in mWh
152 m_energyFullDesign = info.DesignedCapacity / 1000.0; // provided in mWh
153 m_energyRate = status.Rate / 1000.0; // provided in mW
154 m_voltage = status.Voltage / 1000.0; // provided in mV
155
156 if (info.FullChargedCapacity != 0) {
157 m_charge = (float)status.Capacity / info.FullChargedCapacity * 100.0;
158 }
159
160 if (info.DesignedCapacity != 0) {
161 m_capacity = (float)info.FullChargedCapacity / info.DesignedCapacity * 100.0;
162 }
163
164 if (info.CycleCount != 0) {
165 m_cycleCount = info.CycleCount;
166 }
167
168 if (status.PowerState == 0) {
169 m_state = Solid::Battery::NoCharge;
170 } else if (status.PowerState & BATTERY_CHARGING) {
171 m_state = Solid::Battery::Charging;
172 } else if (status.PowerState & BATTERY_DISCHARGING) {
173 m_state = Solid::Battery::Discharging;
174 }
175 // else if(info.PowerState & 0x00000008)//critical
176 // {
177
178 // }
179
180 if (info.Capabilities & BATTERY_SYSTEM_BATTERY) {
181 m_type = Solid::Battery::PrimaryBattery;
182 } else {
183 m_type = Solid::Battery::UnknownBattery;
184 }
185
186 m_rechargeable = info.Technology == 1;
187
188 if (m_charge != old_charge) {
189 Q_EMIT chargePercentChanged(m_charge, m_device->udi());
190 }
191
192 if (m_capacity != old_capacity) {
193 Q_EMIT capacityChanged(m_capacity, m_device->udi());
194 }
195
196 if (m_cycleCount != old_cyleCount) {
197 Q_EMIT cycleCountChanged(m_cycleCount, m_device->udi());
198 }
199
200 if (old_state != m_state) {
201 Q_EMIT chargeStateChanged(m_state, m_device->udi());
202 }
203
204 if (old_isPowerSupply != m_isPowerSupply) {
205 Q_EMIT powerSupplyStateChanged(m_isPowerSupply, m_device->udi());
206 }
207
208 if (old_energy != m_energy) {
209 Q_EMIT energyChanged(m_energy, m_device->udi());
210 }
211
212 if (old_energyFull != m_energyFull) {
213 Q_EMIT energyFullChanged(m_energyFull, m_device->udi());
214 }
215
216 if (old_energyFullDesign != m_energyFullDesign) {
217 Q_EMIT energyFullDesignChanged(m_energyFullDesign, m_device->udi());
218 }
219
220 if (old_energyRate != m_energyRate) {
221 Q_EMIT energyRateChanged(m_energyRate, m_device->udi());
222 }
223
224 if (old_voltage != m_voltage) {
225 Q_EMIT voltageChanged(m_voltage, m_device->udi());
226 }
227}
228
229void WinBattery::initSerial(const Battery &b)
230{
231 wchar_t buffer[1024];
232 BATTERY_QUERY_INFORMATION batteryInformationQuery;
233 ZeroMemory(&batteryInformationQuery, sizeof(batteryInformationQuery));
234 batteryInformationQuery.BatteryTag = b.second;
235 batteryInformationQuery.InformationLevel = BatterySerialNumber;
236 WinDeviceManager::getDeviceInfo<wchar_t, BATTERY_QUERY_INFORMATION>(b.first, IOCTL_BATTERY_QUERY_INFORMATION, buffer, 1024, &batteryInformationQuery);
237
238 m_serial = QString::fromWCharArray(buffer);
239}
240
241void WinBattery::updateTimeToEmpty(const WinBattery::Battery &b)
242{
243 BATTERY_QUERY_INFORMATION batteryInformationQuery;
244 ZeroMemory(&batteryInformationQuery, sizeof(batteryInformationQuery));
245 batteryInformationQuery.BatteryTag = b.second;
246 batteryInformationQuery.InformationLevel = BatteryEstimatedTime;
247 ulong time = WinDeviceManager::getDeviceInfo<ulong, BATTERY_QUERY_INFORMATION>(b.first, IOCTL_BATTERY_QUERY_INFORMATION, &batteryInformationQuery);
248
249 if (time == BATTERY_UNKNOWN_TIME) {
250 time = 0;
251 }
252
253 if (time != m_timeUntilEmpty) {
254 m_timeUntilEmpty = time;
255 Q_EMIT timeToEmptyChanged(time, m_device->udi());
256 }
257}
258
259void WinBattery::updateBatteryTemp(const WinBattery::Battery &b)
260{
261 BATTERY_QUERY_INFORMATION batteryInformationQuery;
262 ZeroMemory(&batteryInformationQuery, sizeof(batteryInformationQuery));
263 batteryInformationQuery.BatteryTag = b.second;
264 batteryInformationQuery.InformationLevel = BatteryTemperature;
265 ulong batteryTemp = WinDeviceManager::getDeviceInfo<ulong, BATTERY_QUERY_INFORMATION>(b.first, IOCTL_BATTERY_QUERY_INFORMATION, &batteryInformationQuery);
266
267 if (batteryTemp != m_temperature) {
268 m_temperature = batteryTemp;
269 Q_EMIT temperatureChanged(batteryTemp, m_device->udi());
270 }
271}
272
273Solid::Battery::Technology WinBattery::technology() const
274{
275 return m_technology;
276}
277
278double WinBattery::energy() const
279{
280 return m_energy;
281}
282
283double WinBattery::energyFull() const
284{
285 return m_energyFull;
286}
287
288double WinBattery::energyFullDesign() const
289{
290 return m_energyFullDesign;
291}
292
293double WinBattery::energyRate() const
294{
295 return m_energyRate;
296}
297
298double WinBattery::voltage() const
299{
300 return m_voltage;
301}
302
303bool WinBattery::isPresent() const
304{
305 return true;
306}
307
308qlonglong WinBattery::timeToEmpty() const
309{
310 return m_timeUntilEmpty;
311}
312
313qlonglong WinBattery::timeToFull() const
314{
315 return 0;
316}
317
318double WinBattery::temperature() const
319{
320 return m_temperature;
321}
322
323qlonglong WinBattery::remainingTime() const
324{
325 return m_timeUntilEmpty; // FIXME
326}
327
328QString WinBattery::serial() const
329{
330 return m_serial;
331}
332
333#include "moc_winbattery.cpp"
Solid::Battery
This device interface is available on batteries.
Definition frontend/battery.h:25
Solid::Battery::BatteryType
BatteryType
This enum type defines the type of the device holding the battery.
Definition frontend/battery.h:71
Solid::Battery::Technology
Technology
Technology used in the battery.
Definition frontend/battery.h:115
Solid::Battery::ChargeState
ChargeState
This enum type defines charge state of a battery.
Definition frontend/battery.h:101
status
Q_SCRIPTABLE CaptureState status()
KLibexec::path
QString path(const QString &relativePath)
QObject::Q_EMIT
Q_EMITQ_EMIT
QString::fromUtf8
QString fromUtf8(QByteArrayView str)
QString::fromWCharArray
QString fromWCharArray(const wchar_t *string, qsizetype size)
QString::number
QString number(double n, char format, int precision)
QtFuture::connect
QFuture< ArgsType< Signal > > connect(Sender *sender, Signal signal)
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