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[USBUHCI]

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- Fix initialization bugs in real hardware

svn path=/trunk/; revision=55830
This commit is contained in:
Johannes Anderwald 2012-02-23 03:22:57 +00:00
parent 03ac0279e8
commit 36bbd6f1a1
1 changed files with 27 additions and 8 deletions
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35
reactos/drivers/usb/usbuhci/hardware.cpp
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@ -585,15 +585,13 @@ CUSBHardwareDevice::GlobalReset()
//
// perform global reset
//
WRITE_PORT_USHORT((PUSHORT)((ULONG)m_Base + UHCI_USBCMD), UHCI_USBCMD_GRESET);
KeStallExecutionProcessor(100);
WriteRegister16(UHCI_USBCMD, ReadRegister16(UHCI_USBCMD) | UHCI_USBCMD_GRESET);
KeStallExecutionProcessor(20);
//
// clear command register
// clear global reset bit
//
WRITE_PORT_USHORT((PUSHORT)((ULONG)m_Base + UHCI_USBCMD), 0);
WriteRegister16(UHCI_USBCMD, ReadRegister16(UHCI_USBCMD) & ~UHCI_USBCMD_GRESET);
KeStallExecutionProcessor(10);
@ -638,11 +636,18 @@ CUSBHardwareDevice::InitializeController()
//
// reclaim ownership from BIOS
//
Value = PCI_LEGSUP_USBPIRQDEN | PCI_LEGSUP_CLEAR_SMI;
Value = 0;
BusInterface.GetBusData(BusInterface.Context, PCI_WHICHSPACE_CONFIG, &Value, PCI_LEGSUP, sizeof(USHORT));
DPRINT1("[USBUHCI] LEGSUP %x\n", Value);
Value = PCI_LEGSUP_USBPIRQDEN;
BusInterface.SetBusData(BusInterface.Context, PCI_WHICHSPACE_CONFIG, &Value, PCI_LEGSUP, sizeof(USHORT));
DPRINT1("[USBUHCI] Acquired ownership\n");
Value = 0;
BusInterface.GetBusData(BusInterface.Context, PCI_WHICHSPACE_CONFIG, &Value, 0x60, sizeof(UCHAR));
DPRINT1("[USBUHCI] SBRN %x\n", Value);
ASSERT(FALSE);
//
// perform global reset
@ -714,6 +719,7 @@ CUSBHardwareDevice::InitializeController()
//
m_QueueHead[Index]->PhysicalAddress = Address.LowPart;
m_QueueHead[Index]->ElementPhysical = QH_TERMINATE;
m_QueueHead[Index]->LinkPhysical = QH_TERMINATE;
if (Index > 0)
{
@ -852,6 +858,19 @@ CUSBHardwareDevice::ResetController(void)
ULONG Count = 0;
USHORT Status;
// clear run bit
WriteRegister16(UHCI_USBCMD, ReadRegister16(UHCI_USBCMD) & ~UHCI_USBCMD_RS);
// wait for the controller to stop
while((ReadRegister16(UHCI_USBSTS) & UHCI_USBSTS_HCHALT) == 0)
{
DPRINT1("[UHCI] Waiting for the controller to halt\n");
KeStallExecutionProcessor(10);
}
// clear configure bit
WriteRegister16(UHCI_USBCMD, ReadRegister16(UHCI_USBCMD) & ~UHCI_USBCMD_CF);
//
// reset controller
//