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hidclass.sys: Handle opportunistic reads. 

Signed-off-by: Aric Stewart <aric@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Aric Stewart 2017-11-07 10:08:10 -06:00 committed by Alexandre Julliard
parent 92d2ebe662
commit 97c925957c
1 changed files with 27 additions and 7 deletions
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34
dlls/hidclass.sys/device.c
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@ -316,7 +316,7 @@ static DWORD CALLBACK hid_device_thread(void *args)
IoCompleteRequest(irp, IO_NO_INCREMENT );
rc = WaitForSingleObject(ext->halt_event, ext->poll_interval);
rc = WaitForSingleObject(ext->halt_event, ext->poll_interval ? ext->poll_interval : DEFAULT_POLL_INTERVAL);
if (rc == WAIT_OBJECT_0)
break;
@ -546,9 +546,7 @@ NTSTATUS WINAPI HID_Device_ioctl(DEVICE_OBJECT *device, IRP *irp)
break;
}
poll_interval = *(ULONG *)irp->AssociatedIrp.SystemBuffer;
if (poll_interval == 0)
FIXME("Handle opportunistic reads\n");
else if (poll_interval <= MAX_POLL_INTERVAL_MSEC)
if (poll_interval <= MAX_POLL_INTERVAL_MSEC)
{
extension->poll_interval = poll_interval;
irp->IoStatus.u.Status = STATUS_SUCCESS;
@ -668,6 +666,7 @@ NTSTATUS WINAPI HID_Device_read(DEVICE_OBJECT *device, IRP *irp)
BASE_DEVICE_EXTENSION *ext = device->DeviceExtension;
UINT buffer_size = RingBuffer_GetBufferSize(ext->ring_buffer);
NTSTATUS rc = STATUS_SUCCESS;
IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation(irp);
int ptr = -1;
packet = HeapAlloc(GetProcessHeap(), 0, buffer_size);
@ -691,9 +690,30 @@ NTSTATUS WINAPI HID_Device_read(DEVICE_OBJECT *device, IRP *irp)
}
else
{
TRACE_(hid_report)("Queue irp\n");
InsertTailList(&ext->irp_queue, &irp->Tail.Overlay.s.ListEntry);
rc = STATUS_PENDING;
BASE_DEVICE_EXTENSION *extension = device->DeviceExtension;
if (extension->poll_interval)
{
TRACE_(hid_report)("Queue irp\n");
InsertTailList(&ext->irp_queue, &irp->Tail.Overlay.s.ListEntry);
rc = STATUS_PENDING;
}
else
{
HID_XFER_PACKET packet;
TRACE("No packet, but opportunistic reads enabled\n");
packet.reportId = ((BYTE*)irp->AssociatedIrp.SystemBuffer)[0];
packet.reportBuffer = &((BYTE*)irp->AssociatedIrp.SystemBuffer)[1];
packet.reportBufferLen = irpsp->Parameters.Read.Length - 1;
rc = call_minidriver(IOCTL_HID_GET_INPUT_REPORT, device, NULL, 0, &packet, sizeof(packet));
if (rc == STATUS_SUCCESS)
{
((BYTE*)irp->AssociatedIrp.SystemBuffer)[0] = packet.reportId;
irp->IoStatus.Information = packet.reportBufferLen + 1;
irp->IoStatus.u.Status = rc;
}
IoCompleteRequest(irp, IO_NO_INCREMENT);
}
}
HeapFree(GetProcessHeap(), 0, packet);