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Gamepad (Windows): use nonblocking read to get battery information

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This commit is contained in:
李通洲
2024-01-13 13:32:41 +08:00
parent 269ad36df5
commit 89db425a03
1 changed files with 24 additions and 16 deletions
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src/detection/gamepad/gamepad_windows.c
+24 -16
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@@ -103,7 +103,7 @@ const char* ffDetectGamepad(FFlist* devices /* List of FFGamepadDevice */)
const char* knownGamepad = detectKnownDeviceName(rdi.hid.dwVendorId, rdi.hid.dwProductId);
if (knownGamepad)
ffStrbufSetS(&device->name, knownGamepad);
HANDLE FF_AUTO_CLOSE_FD hHidFile = CreateFileW(devName, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
HANDLE FF_AUTO_CLOSE_FD hHidFile = CreateFileW(devName, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL);
if (!hHidFile)
{
if (!knownGamepad)
@@ -154,27 +154,35 @@ const char* ffDetectGamepad(FFlist* devices /* List of FFGamepadDevice */)
))
)
{
// Controller must be connected by other programs
FF_AUTO_FREE uint8_t* reportBuffer = malloc(caps.InputReportByteLength);
ssize_t nBytes = ffReadFDData(hHidFile, caps.InputReportByteLength, reportBuffer);
if (rdi.hid.dwVendorId == 0x054C)
OVERLAPPED overlapped = { };
DWORD nBytes;
if (ReadFile(hHidFile, reportBuffer, caps.InputReportByteLength, &nBytes, &overlapped) ||
(WaitForSingleObject(hHidFile, FF_IO_TERM_RESP_WAIT_MS) == WAIT_OBJECT_0 && GetOverlappedResult(hHidFile, &overlapped, &nBytes, FALSE)))
{
if (nBytes > 31)
if (rdi.hid.dwVendorId == 0x054C)
{
uint8_t batteryInfo = reportBuffer[caps.InputReportByteLength == 64 /*USB?*/ ? 30 : 32];
device->battery = (uint8_t) ((batteryInfo & 0x0f) * 100 / (batteryInfo & 0x10 /*charging?*/ ? 11 /*BATTERY_MAX_USB*/ : 8 /*BATTERY_MAX*/));
if (device->battery > 100) device->battery = 100;
if (nBytes > 31)
{
uint8_t batteryInfo = reportBuffer[caps.InputReportByteLength == 64 /*USB?*/ ? 30 : 32];
device->battery = (uint8_t) ((batteryInfo & 0x0f) * 100 / (batteryInfo & 0x10 /*charging?*/ ? 11 /*BATTERY_MAX_USB*/ : 8 /*BATTERY_MAX*/));
if (device->battery > 100) device->battery = 100;
}
}
else
{
if (nBytes > 3 && reportBuffer[0] == 0x30)
{
uint8_t batteryInfo = reportBuffer[2];
device->battery = (uint8_t) (((batteryInfo & 0xE0) >> 4) * 100 / 8);
if (device->battery == 0) device->battery = 1;
else if (device->battery > 100) device->battery = 100;
}
}
}
else
{
if (nBytes > 3 && reportBuffer[0] == 0x30) // Controller must be connected by other programs
{
uint8_t batteryInfo = reportBuffer[2];
device->battery = (uint8_t) (((batteryInfo & 0xE0) >> 4) * 100 / 8);
if (device->battery == 0) device->battery = 1;
else if (device->battery > 100) device->battery = 100;
}
}
CancelIo(hHidFile);
}
}
}