diff options
| -rw-r--r-- | MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c index dea5b1af18..bcb419403d 100644 --- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c +++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c @@ -2633,9 +2633,10 @@ XhcSetConfigCmd ( if ((DeviceSpeed == EFI_USB_SPEED_FULL) || (DeviceSpeed == EFI_USB_SPEED_LOW)) {
Interval = EpDesc->Interval;
//
- // Hard code the interval to MAX first, need calculate through the bInterval field of Endpoint descriptor.
+ // Calculate through the bInterval field of Endpoint descriptor.
//
- InputContext->EP[Dci-1].Interval = 6;
+ ASSERT (Interval != 0);
+ InputContext->EP[Dci-1].Interval = (UINT32)HighBitSet32((UINT32)Interval) + 3;
} else if ((DeviceSpeed == EFI_USB_SPEED_HIGH) || (DeviceSpeed == EFI_USB_SPEED_SUPER)) {
Interval = EpDesc->Interval;
ASSERT (Interval >= 1 && Interval <= 16);
@@ -2830,9 +2831,10 @@ XhcSetConfigCmd64 ( if ((DeviceSpeed == EFI_USB_SPEED_FULL) || (DeviceSpeed == EFI_USB_SPEED_LOW)) {
Interval = EpDesc->Interval;
//
- // Hard code the interval to MAX first, need calculate through the bInterval field of Endpoint descriptor.
+ // Calculate through the bInterval field of Endpoint descriptor.
//
- InputContext->EP[Dci-1].Interval = 6;
+ ASSERT (Interval != 0);
+ InputContext->EP[Dci-1].Interval = (UINT32)HighBitSet32((UINT32)Interval) + 3;
} else if ((DeviceSpeed == EFI_USB_SPEED_HIGH) || (DeviceSpeed == EFI_USB_SPEED_SUPER)) {
Interval = EpDesc->Interval;
ASSERT (Interval >= 1 && Interval <= 16);
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