From 4d1fe68e1ca84cf0d3eec69d20625fa57769de12 Mon Sep 17 00:00:00 2001
From: qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Fri, 26 Jan 2007 04:08:57 +0000
Subject: 1. Add NULL QH to set as QH header; 2. Do ping for high speed OUT
 pipe; 3. Bug fix for QTD size detection; 4. Bug fix for short package
 detection; 5. Bug fix get next QTD in ExcutionTransfer; 6. BOT module modify
 to follow spec; 7. Massstorage error hanling enhancement

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2321 6f19259b-4bc3-4df7-8a09-765794883524
---
 EdkModulePkg/Bus/Pci/Uhci/Dxe/uhci.c | 39 +++++++++++++++++++++++++++---------
 1 file changed, 30 insertions(+), 9 deletions(-)

(limited to 'EdkModulePkg/Bus/Pci/Uhci')

diff --git a/EdkModulePkg/Bus/Pci/Uhci/Dxe/uhci.c b/EdkModulePkg/Bus/Pci/Uhci/Dxe/uhci.c
index 3d81d2c5c3..7e033df2df 100644
--- a/EdkModulePkg/Bus/Pci/Uhci/Dxe/uhci.c
+++ b/EdkModulePkg/Bus/Pci/Uhci/Dxe/uhci.c
@@ -485,6 +485,7 @@ UHCIDriverBindingStart (
   UINTN                   FlBaseAddrReg; 
   EFI_PCI_IO_PROTOCOL     *PciIo; 
   USB_HC_DEV              *HcDev;
+  UINT64                  Supports;
   
   HcDev = NULL;
 
@@ -510,10 +511,19 @@ UHCIDriverBindingStart (
   //
   Status = PciIo->Attributes (
                     PciIo,
-                    EfiPciIoAttributeOperationEnable,
-                    EFI_PCI_DEVICE_ENABLE,
-                    NULL
+                    EfiPciIoAttributeOperationSupported,
+                    0,
+                    &Supports
                     );
+  if (!EFI_ERROR (Status)) {
+    Supports &= EFI_PCI_DEVICE_ENABLE;
+    Status = PciIo->Attributes (
+                      PciIo,
+                      EfiPciIoAttributeOperationEnable,
+                      Supports,
+                      NULL
+                      );
+  }
   if (EFI_ERROR (Status)) {
     gBS->CloseProtocol (
            Controller,
@@ -777,6 +787,8 @@ UnInstallUHCInterface (
 --*/
 {
   USB_HC_DEV  *HcDev;
+  EFI_STATUS  Status;
+  UINT64      Supports;
 
   HcDev = USB_HC_DEV_FROM_THIS (This);
 
@@ -823,12 +835,21 @@ UnInstallUHCInterface (
   //
   // Disable the USB Host Controller
   //
-  HcDev->PciIo->Attributes (
-                  HcDev->PciIo,
-                  EfiPciIoAttributeOperationDisable,
-                  EFI_PCI_DEVICE_ENABLE,
-                  NULL
-                  );
+  Status = HcDev->PciIo->Attributes (
+                           HcDev->PciIo,
+                           EfiPciIoAttributeOperationSupported,
+                           0,
+                           &Supports
+                           );
+  if (!EFI_ERROR (Status)) {
+    Supports &= EFI_PCI_DEVICE_ENABLE;
+    Status = HcDev->PciIo->Attributes (
+                             HcDev->PciIo,
+                             EfiPciIoAttributeOperationDisable,
+                             Supports,
+                             NULL
+                             );
+  }
 
   gBS->FreePool (HcDev);
 
-- 
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