diff options
| author | eric_tian <eric_tian@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-12-16 00:58:46 +0000 |
|---|---|---|
| committer | eric_tian <eric_tian@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-12-16 00:58:46 +0000 |
| commit | efe9186f09a22146361c01d3121c72b1a591f50a (patch) | |
| tree | e4e6d61899f435396da59b861107eec75e5ad848 /MdeModulePkg/Bus/Pci | |
| parent | 7748eb28e121e7193205eb646909b80b1438f5d7 (diff) | |
| download | edk2-platforms-efe9186f09a22146361c01d3121c72b1a591f50a.tar.xz | |
add error handling on usb related modules.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9566 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Bus/Pci')
| -rw-r--r-- | MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c | 6 | ||||
| -rw-r--r-- | MdeModulePkg/Bus/Pci/EhciDxe/EhciReg.h | 29 |
2 files changed, 35 insertions, 0 deletions
diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c index d6210255f4..47ab1e3f8e 100644 --- a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c +++ b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c @@ -1885,6 +1885,12 @@ EhcDriverBindingStop ( }
//
+ // Disable routing of all ports to EHCI controller, so all ports are
+ // routed back to the UHCI controller.
+ //
+ EhcClearOpRegBit (Ehc, EHC_CONFIG_FLAG_OFFSET, CONFIGFLAG_ROUTE_EHC);
+
+ //
// Restore original PCI attributes
//
PciIo->Attributes (
diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/EhciReg.h b/MdeModulePkg/Bus/Pci/EhciDxe/EhciReg.h index 15fd661e3d..a995dc40c2 100644 --- a/MdeModulePkg/Bus/Pci/EhciDxe/EhciReg.h +++ b/MdeModulePkg/Bus/Pci/EhciDxe/EhciReg.h @@ -160,6 +160,35 @@ EhcWriteOpReg ( IN UINT32 Data
);
+/**
+ Set one bit of the operational register while keeping other bits.
+
+ @param Ehc The EHCI device.
+ @param Offset The offset of the operational register.
+ @param Bit The bit mask of the register to set.
+
+**/
+VOID
+EhcSetOpRegBit (
+ IN USB2_HC_DEV *Ehc,
+ IN UINT32 Offset,
+ IN UINT32 Bit
+ );
+
+/**
+ Clear one bit of the operational register while keeping other bits.
+
+ @param Ehc The EHCI device.
+ @param Offset The offset of the operational register.
+ @param Bit The bit mask of the register to clear.
+
+**/
+VOID
+EhcClearOpRegBit (
+ IN USB2_HC_DEV *Ehc,
+ IN UINT32 Offset,
+ IN UINT32 Bit
+ );
/**
Add support for UEFI Over Legacy (UoL) feature, stop
|