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Bluetooth (Windows): uses CM API to detect BTH battery detection

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Co-authored-by: Copilot <copilot@github.com>
This commit is contained in:
李通洲
2026-04-28 19:52:38 +08:00
parent 55e4896524
commit e7cd5f618d
3 changed files with 93 additions and 111 deletions
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src/detection/bluetooth/bluetooth_windows.cpp
-108
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@@ -1,108 +0,0 @@
extern "C" {
#include "bluetooth.h"
}
#include "common/windows/wmi.hpp"
#include "common/windows/unicode.hpp"
#include "common/windows/util.hpp"
extern "C" const char* ffBluetoothDetectBattery(FFlist* devices) {
FFWmiQuery query(L"SELECT __PATH FROM Win32_PnPEntity WHERE Service = 'BthHFEnum'", nullptr, FFWmiNamespace::CIMV2);
if (!query) {
return "Query WMI service failed";
}
IWbemClassObject* pInParams = nullptr;
on_scope_exit releaseInParams([&] { pInParams && pInParams->Release(); });
{
IWbemClassObject* pnpEntityClass = nullptr;
if (FAILED(query.pService->GetObjectW(bstr_t(L"Win32_PnPEntity"), 0, nullptr, &pnpEntityClass, nullptr))) {
return "Failed to get PnP entity class";
}
on_scope_exit releasePnpEntityClass([&] { pnpEntityClass && pnpEntityClass->Release(); });
if (FAILED(pnpEntityClass->GetMethod(bstr_t(L"GetDeviceProperties"), 0, &pInParams, NULL))) {
return "Failed to get GetDeviceProperties method";
}
FFWmiVariant devicePropertyKeys({ L"{104EA319-6EE2-4701-BD47-8DDBF425BBE5} 2", L"DEVPKEY_Bluetooth_DeviceAddress" });
if (FAILED(pInParams->Put(L"devicePropertyKeys", 0, &devicePropertyKeys, CIM_FLAG_ARRAY | CIM_STRING))) {
return "Failed to put devicePropertyKeys";
}
}
while (FFWmiRecord record = query.next()) {
IWbemCallResult* pCallResult = nullptr;
if (FAILED(query.pService->ExecMethod(record.get(L"__PATH").bstrVal, bstr_t(L"GetDeviceProperties"), 0, nullptr, pInParams, nullptr, &pCallResult))) {
continue;
}
on_scope_exit releaseCallResult([&] { pCallResult && pCallResult->Release(); });
IWbemClassObject* pResultObject = nullptr;
if (FAILED(pCallResult->GetResultObject((LONG) WBEM_INFINITE, &pResultObject))) {
continue;
}
on_scope_exit releaseResultObject([&] { pResultObject && pResultObject->Release(); });
VARIANT propArray;
if (FAILED(pResultObject->Get(L"deviceProperties", 0, &propArray, nullptr, nullptr))) {
continue;
}
on_scope_exit releasePropArray([&] { VariantClear(&propArray); });
if (propArray.vt != (VT_ARRAY | VT_UNKNOWN) ||
(propArray.parray->fFeatures & FADF_UNKNOWN) == 0 ||
propArray.parray->cDims != 1 ||
propArray.parray->rgsabound[0].cElements != 2) {
continue;
}
uint8_t batt = 0;
for (LONG i = 0; i < 2; i++) {
IWbemClassObject* object = nullptr;
if (FAILED(SafeArrayGetElement(propArray.parray, &i, &object))) {
continue;
}
FFWmiRecord rec(object);
auto data = rec.get(L"Data");
if (data.vt == VT_EMPTY) {
break;
}
if (i == 0) {
batt = data.get<uint8_t>();
} else {
FF_STRBUF_AUTO_DESTROY addr = ffStrbufCreateWSV(data.get<std::wstring_view>()); // MAC address without colon
if (__builtin_expect(addr.length != 12, 0)) {
continue;
}
FF_LIST_FOR_EACH (FFBluetoothResult, bt, *devices) {
if (bt->address.length != 12 + 5) {
continue;
}
if (addr.chars[0] == bt->address.chars[0] &&
addr.chars[1] == bt->address.chars[1] &&
addr.chars[2] == bt->address.chars[3] &&
addr.chars[3] == bt->address.chars[4] &&
addr.chars[4] == bt->address.chars[6] &&
addr.chars[5] == bt->address.chars[7] &&
addr.chars[6] == bt->address.chars[9] &&
addr.chars[7] == bt->address.chars[10] &&
addr.chars[8] == bt->address.chars[12] &&
addr.chars[9] == bt->address.chars[13] &&
addr.chars[10] == bt->address.chars[15] &&
addr.chars[11] == bt->address.chars[16]) {
bt->battery = batt;
break;
}
}
}
}
}
return NULL;
}