diff options
| author | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-04-17 11:02:59 +0000 |
|---|---|---|
| committer | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-04-17 11:02:59 +0000 |
| commit | dd4047a51c56bae1080b357330ed99dcd286c766 (patch) | |
| tree | bf0d46a5ac947d2cb6963b99ef22e43cc363b848 /MdeModulePkg/Bus/Pci/EhciDxe | |
| parent | 90d44b32f45d342e320acccbfaad03996e660848 (diff) | |
| download | edk2-platforms-dd4047a51c56bae1080b357330ed99dcd286c766.tar.xz | |
[Description]:
Add a feature flag in Uhci & Ehci to disable legacy USB SMI.
[Impaction]:
Platform integrator can choose to legacy USB SMI or not.
[Reference Info]
EDK Tracker 1082
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5081 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Bus/Pci/EhciDxe')
| -rw-r--r-- | MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c | 4 | ||||
| -rw-r--r-- | MdeModulePkg/Bus/Pci/EhciDxe/Ehci.h | 2 | ||||
| -rw-r--r-- | MdeModulePkg/Bus/Pci/EhciDxe/EhciDxe.inf | 5 |
3 files changed, 8 insertions, 3 deletions
diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c index 949aa0496a..0f711e1a0b 100644 --- a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c +++ b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c @@ -1580,7 +1580,9 @@ EhcDriverBindingStart ( // Robustnesss improvement such as for UoL
// Default is not required.
//
- // EhcClearLegacySupport (Ehc);
+ if (FeaturePcdGet (PcdUsbLegacySupport)) {
+ EhcClearLegacySupport (Ehc);
+ }
EhcResetHC (Ehc, EHC_RESET_TIMEOUT);
Status = EhcInitHC (Ehc);
diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.h b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.h index 50a3f1c698..94e415e2a5 100644 --- a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.h +++ b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.h @@ -36,7 +36,7 @@ Revision History #include <Library/UefiLib.h>
#include <Library/BaseLib.h>
#include <Library/MemoryAllocationLib.h>
-
+#include <Library/PcdLib.h>
#include <IndustryStandard/Pci22.h>
diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/EhciDxe.inf b/MdeModulePkg/Bus/Pci/EhciDxe/EhciDxe.inf index 5534bc8b5c..423a04285f 100644 --- a/MdeModulePkg/Bus/Pci/EhciDxe/EhciDxe.inf +++ b/MdeModulePkg/Bus/Pci/EhciDxe/EhciDxe.inf @@ -49,7 +49,10 @@ [Packages]
MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+[FeaturePcd]
+ gEfiMdeModulePkgTokenSpaceGuid.PcdUsbLegacySupport
[LibraryClasses]
MemoryAllocationLib
@@ -59,7 +62,7 @@ UefiDriverEntryPoint
BaseMemoryLib
DebugLib
-
+ PcdLib
[Protocols]
gEfiPciIoProtocolGuid # PROTOCOL ALWAYS_CONSUMED
|