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MdeModulePkg/UsbBus&XhciDxe: Solve a bug that 2 or more tiers SS hubs with SS devices may have no response.

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1.Port reset process may not be proper for some vendor's SS hubs. If the corresponding port shows the reset has been done by C_RESET bit we have to skip the whole reset process for attached devices.
2.Clean C_BH_RESET bit immediately to avoid usb timer entering too many times when 5 tiers hubs are connected.
3.Stop checking URB if there is an error happened.
4.Better error handling for fast hot-plug.

Signed-off-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Elvin Li <elvin.li@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14889 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Feng Tian
2013-11-22 07:46:00 +00:00
committed by erictian
parent a6a2a95632
commit c3f44a7708
4 changed files with 119 additions and 53 deletions
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19
MdeModulePkg/Bus/Usb/UsbBusDxe/UsbHub.c
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@@ -968,6 +968,15 @@ UsbHubResetPort (
UINTN Index;
EFI_STATUS Status;
Status = UsbHubGetPortStatus (HubIf, Port, &PortState);
if (EFI_ERROR (Status)) {
return Status;
} else if (USB_BIT_IS_SET (PortState.PortChangeStatus, USB_PORT_STAT_C_RESET)) {
DEBUG (( EFI_D_INFO, "UsbHubResetPort: skip reset on hub %p port %d\n", HubIf, Port));
return EFI_SUCCESS;
}
Status = UsbHubSetPortFeature (HubIf, Port, (EFI_USB_PORT_FEATURE) USB_HUB_PORT_RESET);
if (EFI_ERROR (Status)) {
@@ -1272,6 +1281,16 @@ UsbRootHubResetPort (
// should be handled in the EHCI driver.
//
Bus = RootIf->Device->Bus;
Status = UsbHcGetRootHubPortStatus (Bus, Port, &PortState);
if (EFI_ERROR (Status)) {
return Status;
} else if (USB_BIT_IS_SET (PortState.PortChangeStatus, USB_PORT_STAT_C_RESET)) {
DEBUG (( EFI_D_INFO, "UsbRootHubResetPort: skip reset on root port %d\n", Port));
return EFI_SUCCESS;
}
Status = UsbHcSetRootHubPortFeature (Bus, Port, EfiUsbPortReset);
if (EFI_ERROR (Status)) {