X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdeModulePkg%2FBus%2FPci%2FXhciPei%2FXhciSched.c;h=3dd2b8909787180ec94bc19af05c382a838d7ca1;hp=7a63dabd8c1d978d1bab5d6249ff592dfa086b86;hb=3719c2aa879bcbcf3f0ab1f710e81fe2dbc19d9a;hpb=213da0b540891ba614753673ce3ed54940434497

diff --git a/MdeModulePkg/Bus/Pci/XhciPei/XhciSched.c b/MdeModulePkg/Bus/Pci/XhciPei/XhciSched.c
index 7a63dabd8c..3dd2b89097 100644
--- a/MdeModulePkg/Bus/Pci/XhciPei/XhciSched.c
+++ b/MdeModulePkg/Bus/Pci/XhciPei/XhciSched.c
@@ -2,7 +2,7 @@
 PEIM to produce gPeiUsb2HostControllerPpiGuid based on gPeiUsbControllerPpiGuid
 which is used to enable recovery function from USB Drivers.
 
-Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2014 - 2017, Intel Corporation. All rights reserved.<BR>
 
 This program and the accompanying materials
 are licensed and made available under the terms and conditions
@@ -1749,6 +1749,20 @@ XhcPeiSetConfigCmd (
             InputContext->EP[Dci-1].CErr   = 0;
             InputContext->EP[Dci-1].EPType = ED_ISOCH_OUT;
           }
+          //
+          // Get the bInterval from descriptor and init the the interval field of endpoint context.
+          // Refer to XHCI 1.1 spec section 6.2.3.6.
+          //
+          if (DeviceSpeed == EFI_USB_SPEED_FULL) {
+            Interval = EpDesc->Interval;
+            ASSERT (Interval >= 1 && Interval <= 16);
+            InputContext->EP[Dci-1].Interval = Interval + 2;
+          } else if ((DeviceSpeed == EFI_USB_SPEED_HIGH) || (DeviceSpeed == EFI_USB_SPEED_SUPER)) {
+            Interval = EpDesc->Interval;
+            ASSERT (Interval >= 1 && Interval <= 16);
+            InputContext->EP[Dci-1].Interval = Interval - 1;
+          }
+
           //
           // Do not support isochronous transfer now.
           //
@@ -1952,6 +1966,20 @@ XhcPeiSetConfigCmd64 (
             InputContext->EP[Dci-1].CErr   = 0;
             InputContext->EP[Dci-1].EPType = ED_ISOCH_OUT;
           }
+          //
+          // Get the bInterval from descriptor and init the the interval field of endpoint context.
+          // Refer to XHCI 1.1 spec section 6.2.3.6.
+          //
+          if (DeviceSpeed == EFI_USB_SPEED_FULL) {
+            Interval = EpDesc->Interval;
+            ASSERT (Interval >= 1 && Interval <= 16);
+            InputContext->EP[Dci-1].Interval = Interval + 2;
+          } else if ((DeviceSpeed == EFI_USB_SPEED_HIGH) || (DeviceSpeed == EFI_USB_SPEED_SUPER)) {
+            Interval = EpDesc->Interval;
+            ASSERT (Interval >= 1 && Interval <= 16);
+            InputContext->EP[Dci-1].Interval = Interval - 1;
+          }
+
           //
           // Do not support isochronous transfer now.
           //