The commit fills the 'Interval' field of the Endpoint Context data for
isochronous endpoints. It will resolve the error when a Configure
Endpoint Command is sent to an isochronous endpoint.

Cc: Star Zeng <[email protected]>
Cc: Baranee <[email protected]>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <[email protected]>
---
 MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c | 30 +++++++++++++++++++++++++++++-
 MdeModulePkg/Bus/Pci/XhciPei/XhciSched.c | 30 +++++++++++++++++++++++++++++-
 2 files changed, 58 insertions(+), 2 deletions(-)

diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c 
b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
index 4bec76a85f..58a2f984a9 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
@@ -2,7 +2,7 @@
 
   XHCI transfer scheduling routines.
 
-Copyright (c) 2011 - 2016, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2011 - 2017, Intel Corporation. All rights reserved.<BR>
 This program and the accompanying materials
 are licensed and made available under the terms and conditions of the BSD 
License
 which accompanies this distribution.  The full text of the license may be 
found at
@@ -2661,6 +2661,20 @@ XhcInitializeEndpointContext (
           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.
         //
         DEBUG ((EFI_D_INFO, "XhcInitializeEndpointContext: Unsupport ISO EP 
found, Transfer ring is not allocated.\n"));
@@ -2829,6 +2843,20 @@ XhcInitializeEndpointContext64 (
           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.
         //
         DEBUG ((EFI_D_INFO, "XhcInitializeEndpointContext64: Unsupport ISO EP 
found, Transfer ring is not allocated.\n"));
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
@@ -1750,6 +1750,20 @@ XhcPeiSetConfigCmd (
             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.
           //
           DEBUG ((EFI_D_INFO, "XhcPeiSetConfigCmd: Unsupport ISO EP found, 
Transfer ring is not allocated.\n"));
@@ -1953,6 +1967,20 @@ XhcPeiSetConfigCmd64 (
             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.
           //
           DEBUG ((EFI_D_INFO, "XhcPeiSetConfigCmd64: Unsupport ISO EP found, 
Transfer ring is not allocated.\n"));
-- 
2.12.0.windows.1

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