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[USBEHCI]

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- Create a macro for properly checking for low speed devices
- Check again for a low speed device after the EHCI reset completes
- Don't ignore status changes on ports that we have released (revert part of r55851)

svn path=/trunk/; revision=55853
This commit is contained in:
Cameron Gutman 2012-02-25 06:23:12 +00:00
parent 266e31d825
commit 11c95e90a7
2 changed files with 13 additions and 13 deletions
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21
reactos/drivers/usb/usbehci/hardware.cpp
View file

@ -958,7 +958,7 @@ CUSBHardwareDevice::ResetPort(
PortStatus = EHCI_READ_REGISTER_ULONG(EHCI_PORTSC + (4 * PortIndex));
ASSERT(!(PortStatus & EHCI_PRT_SLOWSPEEDLINE));
ASSERT(!EHCI_IS_LOW_SPEED(PortStatus));
ASSERT(PortStatus & EHCI_PRT_CONNECTED);
//
@ -1112,7 +1112,7 @@ CUSBHardwareDevice::ClearPortStatus(
KeDelayExecutionThread(KernelMode, FALSE, &Timeout);
//
// check the enabled bit after reset
// check the port status after reset
//
Value = EHCI_READ_REGISTER_ULONG(EHCI_PORTSC + (4 * PortId));
if (!(Value & EHCI_PRT_CONNECTED))
@ -1120,9 +1120,14 @@ CUSBHardwareDevice::ClearPortStatus(
DPRINT1("No device is here after reset. Bad controller/device?\n");
return STATUS_UNSUCCESSFUL;
}
else if (EHCI_IS_LOW_SPEED(Value))
{
DPRINT1("Low speed device connected. Releasing ownership\n");
EHCI_WRITE_REGISTER_ULONG(EHCI_PORTSC + (4 * PortId), Value | EHCI_PRT_RELEASEOWNERSHIP);
return STATUS_DEVICE_NOT_CONNECTED;
}
else if (!(Value & EHCI_PRT_ENABLED))
{
// release ownership
DPRINT1("Full speed device connected. Releasing ownership\n");
EHCI_WRITE_REGISTER_ULONG(EHCI_PORTSC + (4 * PortId), Value | EHCI_PRT_RELEASEOWNERSHIP);
return STATUS_DEVICE_NOT_CONNECTED;
@ -1447,14 +1452,6 @@ EhciDefferedRoutine(
{
PortStatus = This->EHCI_READ_REGISTER_ULONG(EHCI_PORTSC + (4 * i));
// Check if we actually own the port
if (PortStatus & EHCI_PRT_RELEASEOWNERSHIP)
{
//Discard anything on this port but ack any status changes
This->EHCI_WRITE_REGISTER_ULONG(EHCI_PORTSC + (4 * i), PortStatus);
continue;
}
//
// Device connected or removed
//
@ -1471,7 +1468,7 @@ EhciDefferedRoutine(
DPRINT1("Misbeaving controller. Port should be disabled at this point\n");
}
if (PortStatus & EHCI_PRT_SLOWSPEEDLINE)
if (EHCI_IS_LOW_SPEED(PortStatus))
{
DPRINT1("Low speed device connected. Releasing ownership\n");
This->EHCI_WRITE_REGISTER_ULONG(EHCI_PORTSC + (4 * i), PortStatus | EHCI_PRT_RELEASEOWNERSHIP);

5
reactos/drivers/usb/usbehci/hardware.h
View file

@ -76,11 +76,14 @@
#define EHCI_PRT_FORCERESUME 0x40
#define EHCI_PRT_SUSPEND 0x80
#define EHCI_PRT_RESET 0x100
#define EHCI_PRT_SLOWSPEEDLINE 0x400
#define EHCI_PRT_LINESTATUSA 0x400
#define EHCI_PRT_LINESTATUSB 0x800
#define EHCI_PRT_POWER 0x1000
#define EHCI_PRT_RELEASEOWNERSHIP 0x2000
#define EHCI_PORTSC_DATAMASK 0xffffffd1
#define EHCI_IS_LOW_SPEED(x) (((x) & EHCI_PRT_LINESTATUSA) && !((x) & EHCI_PRT_LINESTATUSB))
//
// Terminate Pointer used for QueueHeads and Element Transfer Descriptors to mark Pointers as the end
//