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[USBUHCI]

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- Implement starting the controller

svn path=/trunk/; revision=55788
This commit is contained in:
Johannes Anderwald 2012-02-21 18:33:37 +00:00
parent d8b2ccec60
commit 1511120650
1 changed files with 55 additions and 16 deletions
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71
reactos/drivers/usb/usbuhci/hardware.cpp
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@ -370,25 +370,13 @@ CUSBHardwareDevice::PnpStart(
return Status;
}
//
// Stop the controller before modifying schedules
//
Status = StopController();
if (!NT_SUCCESS(Status))
{
DPRINT1("Failed to stop the controller \n");
ASSERT(FALSE);
return Status;
}
//
// Start the controller
//
DPRINT1("Starting Controller\n");
Status = StartController();
//
// done
//
@ -475,9 +463,60 @@ CUSBHardwareDevice::GetUSBQueue(
NTSTATUS
CUSBHardwareDevice::StartController(void)
{
UNIMPLEMENTED
ASSERT(FALSE);
return STATUS_NOT_IMPLEMENTED;
ULONG Index;
USHORT Status;
//
// debug info
//
DPRINT1("[USBUHCI] USBCMD: %x USBSTS %x\n", ReadRegister16(UHCI_USBCMD), ReadRegister16(UHCI_USBSTS));
//
// Set the run bit in the command register
//
WriteRegister16(UHCI_USBCMD, ReadRegister16(UHCI_USBCMD) | UHCI_USBCMD_RS);
for(Index = 0; Index < 10; Index++)
{
//
// wait a bit
//
KeStallExecutionProcessor(100);
//
// get controller status
//
Status = ReadRegister16(UHCI_USBSTS);
DPRINT1("[USBUHCI] Status %x\n", Status);
if (!(Status & UHCI_USBSTS_HCHALT))
{
//
// controller started
//
break;
}
}
if ((Status & UHCI_USBSTS_HCHALT))
{
//
// failed to start controller
//
DPRINT1("[USBUHCI] Failed to start controller Status %x\n", Status);
ASSERT(FALSE);
return STATUS_UNSUCCESSFUL;
}
DPRINT1("[USBUHCI] Controller Started\n");
DPRINT1("[USBUHCI] Controller Status %x\n", ReadRegister16(UHCI_USBSTS));
DPRINT1("[USBUHCI] Controller Frame %x\n", ReadRegister16(UHCI_FRNUM));
//
// done
//
return STATUS_SUCCESS;
}
VOID