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MdeModulePkg/Bus/Pci/XhciDxe: Reset port if status change returns an error

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Force resetting the port by clearing the USB_PORT_STAT_C_RESET bit in
PortChangeStatus when XhcPollPortStatusChange fails

Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
This commit is contained in:
Sean Rhodes 2022-12-16 12:24:18 +00:00 committed by mergify[bot]
parent 89c5d90003
commit 992d5451d1
1 changed files with 10 additions and 1 deletions
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11
MdeModulePkg/Bus/Pci/XhciDxe/Xhci.c
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@ -471,7 +471,16 @@ XhcGetRootHubPortStatus (
// For those devices behind hub, we get its attach/detach event by hooking Get_Port_Status request at control transfer for those hub. // For those devices behind hub, we get its attach/detach event by hooking Get_Port_Status request at control transfer for those hub.
// //
ParentRouteChart.Dword = 0; ParentRouteChart.Dword = 0;
XhcPollPortStatusChange (Xhc, ParentRouteChart, PortNumber, PortStatus); Status = XhcPollPortStatusChange (Xhc, ParentRouteChart, PortNumber, PortStatus);
//
// Force resetting the port by clearing the USB_PORT_STAT_C_RESET bit in PortChangeStatus
// when XhcPollPortStatusChange fails
//
if (EFI_ERROR (Status)) {
PortStatus->PortChangeStatus &= ~(USB_PORT_STAT_C_RESET);
Status = EFI_SUCCESS;
}
ON_EXIT: ON_EXIT:
gBS->RestoreTPL (OldTpl); gBS->RestoreTPL (OldTpl);