MdeModulePkg/Xhci: Fill the 'interval' field for ISO endpoint context

[mirror_edk2.git] / MdeModulePkg / Bus / Pci / XhciPei / XhciSched.c

diff --git a/MdeModulePkg/Bus/Pci/XhciPei/XhciSched.c b/MdeModulePkg/Bus/Pci/XhciPei/XhciSched.c
index 7a63dabd8c1d978d1bab5d6249ff592dfa086b86..3dd2b8909787180ec94bc19af05c382a838d7ca1 100644 (file)
--- 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\r
 which is used to enable recovery function from USB Drivers.\r
 \r
 PEIM to produce gPeiUsb2HostControllerPpiGuid based on gPeiUsbControllerPpiGuid\r
 which is used to enable recovery function from USB Drivers.\r
 \r

-Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2014 - 2017, Intel Corporation. All rights reserved.<BR>\r

 \r
 This program and the accompanying materials\r
 are licensed and made available under the terms and conditions\r
 \r
 This program and the accompanying materials\r
 are licensed and made available under the terms and conditions\r


@@ -1749,6 +1749,20 @@ XhcPeiSetConfigCmd (
             InputContext->EP[Dci-1].CErr   = 0;\r
             InputContext->EP[Dci-1].EPType = ED_ISOCH_OUT;\r
           }\r
             InputContext->EP[Dci-1].CErr   = 0;\r
             InputContext->EP[Dci-1].EPType = ED_ISOCH_OUT;\r
           }\r

+          //\r
+          // Get the bInterval from descriptor and init the the interval field of endpoint context.\r
+          // Refer to XHCI 1.1 spec section 6.2.3.6.\r
+          //\r
+          if (DeviceSpeed == EFI_USB_SPEED_FULL) {\r
+            Interval = EpDesc->Interval;\r
+            ASSERT (Interval >= 1 && Interval <= 16);\r
+            InputContext->EP[Dci-1].Interval = Interval + 2;\r
+          } else if ((DeviceSpeed == EFI_USB_SPEED_HIGH) || (DeviceSpeed == EFI_USB_SPEED_SUPER)) {\r
+            Interval = EpDesc->Interval;\r
+            ASSERT (Interval >= 1 && Interval <= 16);\r
+            InputContext->EP[Dci-1].Interval = Interval - 1;\r
+          }\r
+\r

           //\r
           // Do not support isochronous transfer now.\r
           //\r
           //\r
           // Do not support isochronous transfer now.\r
           //\r


@@ -1952,6 +1966,20 @@ XhcPeiSetConfigCmd64 (
             InputContext->EP[Dci-1].CErr   = 0;\r
             InputContext->EP[Dci-1].EPType = ED_ISOCH_OUT;\r
           }\r
             InputContext->EP[Dci-1].CErr   = 0;\r
             InputContext->EP[Dci-1].EPType = ED_ISOCH_OUT;\r
           }\r

+          //\r
+          // Get the bInterval from descriptor and init the the interval field of endpoint context.\r
+          // Refer to XHCI 1.1 spec section 6.2.3.6.\r
+          //\r
+          if (DeviceSpeed == EFI_USB_SPEED_FULL) {\r
+            Interval = EpDesc->Interval;\r
+            ASSERT (Interval >= 1 && Interval <= 16);\r
+            InputContext->EP[Dci-1].Interval = Interval + 2;\r
+          } else if ((DeviceSpeed == EFI_USB_SPEED_HIGH) || (DeviceSpeed == EFI_USB_SPEED_SUPER)) {\r
+            Interval = EpDesc->Interval;\r
+            ASSERT (Interval >= 1 && Interval <= 16);\r
+            InputContext->EP[Dci-1].Interval = Interval - 1;\r
+          }\r
+\r

           //\r
           // Do not support isochronous transfer now.\r
           //\r
           //\r
           // Do not support isochronous transfer now.\r
           //\r