Console Platform DXE Driver, install Console Device Guids and update Console\r
Environment Variables.\r
\r
-Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
\r
\r
/**\r
- Test to see if EFI_SIMPLE_TEXT_INPUT_PROTOCOL is supported on ControllerHandle. \r
+ Test to see if EFI_SIMPLE_TEXT_INPUT_PROTOCOL is supported on ControllerHandle.\r
\r
@param This Protocol instance pointer.\r
@param ControllerHandle Handle of device to test.\r
\r
\r
/**\r
- Test to see if EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL is supported on ControllerHandle. \r
+ Test to see if EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL is supported on ControllerHandle.\r
\r
@param This Protocol instance pointer.\r
@param ControllerHandle Handle of device to test.\r
\r
\r
/**\r
- Test to see if the specified protocol is supported on ControllerHandle. \r
+ Test to see if the specified protocol is supported on ControllerHandle.\r
\r
@param This Protocol instance pointer.\r
@param ControllerHandle Handle of device to test.\r
Start this driver on ControllerHandle by opening Simple Text Input Protocol,\r
reading Device Path, and installing Console In Devcice GUID on ControllerHandle.\r
\r
- If this devcie is not one hot-plug devce, append its device path into the \r
- console environment variables ConInDev.\r
- \r
+ Append its device path into the console environment variables ConInDev.\r
+\r
@param This Protocol instance pointer.\r
@param ControllerHandle Handle of device to bind driver to\r
@param RemainingDevicePath Optional parameter use to pick a specific child\r
}\r
\r
//\r
- // Check the device path, if it is a hot plug device,\r
- // do not put the device path into ConInDev, and install\r
- // gEfiConsoleInDeviceGuid to the device handle directly.\r
- // The policy is, make hot plug device plug in and play immediately.\r
+ // Append the device path to the ConInDev environment variable\r
+ //\r
+ ConPlatformUpdateDeviceVariable (\r
+ L"ConInDev",\r
+ DevicePath,\r
+ Append\r
+ );\r
+\r
+ //\r
+ // If the device path is an instance in the ConIn environment variable,\r
+ // then install EfiConsoleInDeviceGuid onto ControllerHandle\r
//\r
- if (IsHotPlugDevice (DevicePath)) {\r
+ if (IsInConInVariable) {\r
gBS->InstallMultipleProtocolInterfaces (\r
&ControllerHandle,\r
&gEfiConsoleInDeviceGuid,\r
NULL,\r
NULL\r
);\r
- //\r
- // Append the device path to ConInDev only if it is in ConIn variable.\r
- //\r
- if (IsInConInVariable) {\r
- ConPlatformUpdateDeviceVariable (\r
- L"ConInDev",\r
- DevicePath,\r
- Append\r
- );\r
- }\r
} else {\r
- //\r
- // If it is not a hot-plug device, append the device path to the\r
- // ConInDev environment variable\r
- //\r
- ConPlatformUpdateDeviceVariable (\r
- L"ConInDev",\r
- DevicePath,\r
- Append\r
- );\r
-\r
- //\r
- // If the device path is an instance in the ConIn environment variable,\r
- // then install EfiConsoleInDeviceGuid onto ControllerHandle\r
- //\r
- if (IsInConInVariable) {\r
- gBS->InstallMultipleProtocolInterfaces (\r
- &ControllerHandle,\r
- &gEfiConsoleInDeviceGuid,\r
- NULL,\r
- NULL\r
- );\r
- } else {\r
- gBS->CloseProtocol (\r
- ControllerHandle,\r
- &gEfiSimpleTextInProtocolGuid,\r
- This->DriverBindingHandle,\r
- ControllerHandle\r
- );\r
- }\r
+ gBS->CloseProtocol (\r
+ ControllerHandle,\r
+ &gEfiSimpleTextInProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle\r
+ );\r
}\r
\r
return EFI_SUCCESS;\r
}\r
\r
/**\r
- Start this driver on the device for console output and stardard error output.\r
+ Start this driver on the device for console output and standard error output.\r
\r
Start this driver on ControllerHandle by opening Simple Text Output Protocol,\r
reading Device Path, and installing Console Out Devcic GUID, Standard Error\r
Device GUID on ControllerHandle.\r
\r
- If this devcie is not one hot-plug devce, append its device path into the \r
- console environment variables ConOutDev, ErrOutDev.\r
- \r
+ Append its device path into the console environment variables ConOutDev, ErrOutDev.\r
+\r
@param This Protocol instance pointer.\r
@param ControllerHandle Handle of device to bind driver to\r
@param RemainingDevicePath Optional parameter use to pick a specific child\r
}\r
\r
//\r
- // Check the device path, if it is a hot plug device,\r
- // do not put the device path into ConOutDev and ErrOutDev,\r
- // and install gEfiConsoleOutDeviceGuid to the device handle directly.\r
- // The policy is, make hot plug device plug in and play immediately.\r
+ // Append the device path to the ConOutDev and ErrOutDev environment variable.\r
+ // For GOP device path, append the sibling device path as well.\r
//\r
- if (IsHotPlugDevice (DevicePath)) {\r
+ if (!ConPlatformUpdateGopCandidate (DevicePath)) {\r
+ ConPlatformUpdateDeviceVariable (\r
+ L"ConOutDev",\r
+ DevicePath,\r
+ Append\r
+ );\r
+ //\r
+ // Then append the device path to the ErrOutDev environment variable\r
+ //\r
+ ConPlatformUpdateDeviceVariable (\r
+ L"ErrOutDev",\r
+ DevicePath,\r
+ Append\r
+ );\r
+ }\r
+\r
+ //\r
+ // If the device path is an instance in the ConOut environment variable,\r
+ // then install EfiConsoleOutDeviceGuid onto ControllerHandle\r
+ //\r
+ if (IsInConOutVariable) {\r
+ NeedClose = FALSE;\r
+ Status = gBS->InstallMultipleProtocolInterfaces (\r
+ &ControllerHandle,\r
+ &gEfiConsoleOutDeviceGuid,\r
+ NULL,\r
+ NULL\r
+ );\r
+ }\r
+ //\r
+ // If the device path is an instance in the ErrOut environment variable,\r
+ // then install EfiStandardErrorDeviceGuid onto ControllerHandle\r
+ //\r
+ if (IsInErrOutVariable) {\r
+ NeedClose = FALSE;\r
gBS->InstallMultipleProtocolInterfaces (\r
&ControllerHandle,\r
- &gEfiConsoleOutDeviceGuid,\r
+ &gEfiStandardErrorDeviceGuid,\r
NULL,\r
NULL\r
);\r
- //\r
- // Append the device path to ConOutDev only if it is in ConOut variable.\r
- //\r
- if (IsInConOutVariable) {\r
- ConPlatformUpdateDeviceVariable (\r
- L"ConOutDev",\r
- DevicePath,\r
- Append\r
- );\r
- }\r
- //\r
- // Append the device path to ErrOutDev only if it is in ErrOut variable.\r
- //\r
- if (IsInErrOutVariable) {\r
- ConPlatformUpdateDeviceVariable (\r
- L"ErrOutDev",\r
- DevicePath,\r
- Append\r
- );\r
- }\r
- } else {\r
- //\r
- // If it is not a hot-plug device, append the device path to \r
- // the ConOutDev and ErrOutDev environment variable.\r
- // For GOP device path, append the sibling device path as well.\r
- //\r
- if (!ConPlatformUpdateGopCandidate (DevicePath)) {\r
- ConPlatformUpdateDeviceVariable (\r
- L"ConOutDev",\r
- DevicePath,\r
- Append\r
- );\r
- //\r
- // Then append the device path to the ErrOutDev environment variable\r
- //\r
- ConPlatformUpdateDeviceVariable (\r
- L"ErrOutDev",\r
- DevicePath,\r
- Append\r
- );\r
- }\r
-\r
- //\r
- // If the device path is an instance in the ConOut environment variable,\r
- // then install EfiConsoleOutDeviceGuid onto ControllerHandle\r
- //\r
- if (IsInConOutVariable) {\r
- NeedClose = FALSE;\r
- Status = gBS->InstallMultipleProtocolInterfaces (\r
- &ControllerHandle,\r
- &gEfiConsoleOutDeviceGuid,\r
- NULL,\r
- NULL\r
- );\r
- }\r
- //\r
- // If the device path is an instance in the ErrOut environment variable,\r
- // then install EfiStandardErrorDeviceGuid onto ControllerHandle\r
- //\r
- if (IsInErrOutVariable) {\r
- NeedClose = FALSE;\r
- gBS->InstallMultipleProtocolInterfaces (\r
- &ControllerHandle,\r
- &gEfiStandardErrorDeviceGuid,\r
- NULL,\r
- NULL\r
- );\r
- }\r
+ }\r
\r
- if (NeedClose) {\r
- gBS->CloseProtocol (\r
- ControllerHandle,\r
- &gEfiSimpleTextOutProtocolGuid,\r
- This->DriverBindingHandle,\r
- ControllerHandle\r
- );\r
- }\r
+ if (NeedClose) {\r
+ gBS->CloseProtocol (\r
+ ControllerHandle,\r
+ &gEfiSimpleTextOutProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle\r
+ );\r
}\r
\r
return EFI_SUCCESS;\r
}\r
\r
/**\r
- Stop this driver on ControllerHandle by removing Console In Devcice GUID \r
+ Stop this driver on ControllerHandle by removing Console In Devcice GUID\r
and closing the Simple Text Input protocol on ControllerHandle.\r
\r
@param This Protocol instance pointer.\r
\r
\r
/**\r
- Stop this driver on ControllerHandle by removing Console Out Devcice GUID \r
+ Stop this driver on ControllerHandle by removing Console Out Devcice GUID\r
and closing the Simple Text Output protocol on ControllerHandle.\r
\r
@param This Protocol instance pointer.\r
@param Name String part of EFI variable name\r
\r
@return Dynamically allocated memory that contains a copy of the EFI variable.\r
- Caller is repsoncible freeing the buffer. Return NULL means Variable \r
+ Caller is repsoncible freeing the buffer. Return NULL means Variable\r
was not read.\r
\r
**/\r
EFI_DEVICE_PATH_PROTOCOL *NodeRight;\r
\r
for (NodeLeft = Left; !IsDevicePathEndType (NodeLeft); NodeLeft = NextDevicePathNode (NodeLeft)) {\r
- if (DevicePathType (NodeLeft) == ACPI_DEVICE_PATH && DevicePathSubType (NodeLeft) == ACPI_ADR_DP) {\r
+ if ((DevicePathType (NodeLeft) == ACPI_DEVICE_PATH && DevicePathSubType (NodeLeft) == ACPI_ADR_DP) ||\r
+ (DevicePathType (NodeLeft) == HARDWARE_DEVICE_PATH && DevicePathSubType (NodeLeft) == HW_CONTROLLER_DP &&\r
+ DevicePathType (NextDevicePathNode (NodeLeft)) == ACPI_DEVICE_PATH && DevicePathSubType (NextDevicePathNode (NodeLeft)) == ACPI_ADR_DP)) {\r
break;\r
}\r
}\r
}\r
\r
for (NodeRight = Right; !IsDevicePathEndType (NodeRight); NodeRight = NextDevicePathNode (NodeRight)) {\r
- if (DevicePathType (NodeRight) == ACPI_DEVICE_PATH && DevicePathSubType (NodeRight) == ACPI_ADR_DP) {\r
+ if ((DevicePathType (NodeRight) == ACPI_DEVICE_PATH && DevicePathSubType (NodeRight) == ACPI_ADR_DP) ||\r
+ (DevicePathType (NodeRight) == HARDWARE_DEVICE_PATH && DevicePathSubType (NodeRight) == HW_CONTROLLER_DP &&\r
+ DevicePathType (NextDevicePathNode (NodeRight)) == ACPI_DEVICE_PATH && DevicePathSubType (NextDevicePathNode (NodeRight)) == ACPI_ADR_DP)) {\r
break;\r
}\r
}\r
return (BOOLEAN) (CompareMem (Left, Right, (UINTN) NodeLeft - (UINTN) Left) == 0);\r
}\r
\r
+/**\r
+ Check whether a USB device match the specified USB Class device path. This\r
+ function follows "Load Option Processing" behavior in UEFI specification.\r
+\r
+ @param UsbIo USB I/O protocol associated with the USB device.\r
+ @param UsbClass The USB Class device path to match.\r
+\r
+ @retval TRUE The USB device match the USB Class device path.\r
+ @retval FALSE The USB device does not match the USB Class device path.\r
+\r
+**/\r
+BOOLEAN\r
+MatchUsbClass (\r
+ IN EFI_USB_IO_PROTOCOL *UsbIo,\r
+ IN USB_CLASS_DEVICE_PATH *UsbClass\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_USB_DEVICE_DESCRIPTOR DevDesc;\r
+ EFI_USB_INTERFACE_DESCRIPTOR IfDesc;\r
+ UINT8 DeviceClass;\r
+ UINT8 DeviceSubClass;\r
+ UINT8 DeviceProtocol;\r
+\r
+ if ((DevicePathType (UsbClass) != MESSAGING_DEVICE_PATH) ||\r
+ (DevicePathSubType (UsbClass) != MSG_USB_CLASS_DP)){\r
+ return FALSE;\r
+ }\r
+\r
+ //\r
+ // Check Vendor Id and Product Id.\r
+ //\r
+ Status = UsbIo->UsbGetDeviceDescriptor (UsbIo, &DevDesc);\r
+ if (EFI_ERROR (Status)) {\r
+ return FALSE;\r
+ }\r
+\r
+ if ((UsbClass->VendorId != 0xffff) &&\r
+ (UsbClass->VendorId != DevDesc.IdVendor)) {\r
+ return FALSE;\r
+ }\r
+\r
+ if ((UsbClass->ProductId != 0xffff) &&\r
+ (UsbClass->ProductId != DevDesc.IdProduct)) {\r
+ return FALSE;\r
+ }\r
+\r
+ DeviceClass = DevDesc.DeviceClass;\r
+ DeviceSubClass = DevDesc.DeviceSubClass;\r
+ DeviceProtocol = DevDesc.DeviceProtocol;\r
+ if (DeviceClass == 0) {\r
+ //\r
+ // If Class in Device Descriptor is set to 0, use the Class, SubClass and\r
+ // Protocol in Interface Descriptor instead.\r
+ //\r
+ Status = UsbIo->UsbGetInterfaceDescriptor (UsbIo, &IfDesc);\r
+ if (EFI_ERROR (Status)) {\r
+ return FALSE;\r
+ }\r
+\r
+ DeviceClass = IfDesc.InterfaceClass;\r
+ DeviceSubClass = IfDesc.InterfaceSubClass;\r
+ DeviceProtocol = IfDesc.InterfaceProtocol;\r
+ }\r
+\r
+ //\r
+ // Check Class, SubClass and Protocol.\r
+ //\r
+ if ((UsbClass->DeviceClass != 0xff) &&\r
+ (UsbClass->DeviceClass != DeviceClass)) {\r
+ return FALSE;\r
+ }\r
+\r
+ if ((UsbClass->DeviceSubClass != 0xff) &&\r
+ (UsbClass->DeviceSubClass != DeviceSubClass)) {\r
+ return FALSE;\r
+ }\r
+\r
+ if ((UsbClass->DeviceProtocol != 0xff) &&\r
+ (UsbClass->DeviceProtocol != DeviceProtocol)) {\r
+ return FALSE;\r
+ }\r
+\r
+ return TRUE;\r
+}\r
+\r
+/**\r
+ Check whether a USB device match the specified USB WWID device path. This\r
+ function follows "Load Option Processing" behavior in UEFI specification.\r
+\r
+ @param UsbIo USB I/O protocol associated with the USB device.\r
+ @param UsbWwid The USB WWID device path to match.\r
+\r
+ @retval TRUE The USB device match the USB WWID device path.\r
+ @retval FALSE The USB device does not match the USB WWID device path.\r
+\r
+**/\r
+BOOLEAN\r
+MatchUsbWwid (\r
+ IN EFI_USB_IO_PROTOCOL *UsbIo,\r
+ IN USB_WWID_DEVICE_PATH *UsbWwid\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_USB_DEVICE_DESCRIPTOR DevDesc;\r
+ EFI_USB_INTERFACE_DESCRIPTOR IfDesc;\r
+ UINT16 *LangIdTable;\r
+ UINT16 TableSize;\r
+ UINT16 Index;\r
+ CHAR16 *CompareStr;\r
+ UINTN CompareLen;\r
+ CHAR16 *SerialNumberStr;\r
+ UINTN Length;\r
+\r
+ if ((DevicePathType (UsbWwid) != MESSAGING_DEVICE_PATH) ||\r
+ (DevicePathSubType (UsbWwid) != MSG_USB_WWID_DP)) {\r
+ return FALSE;\r
+ }\r
+\r
+ //\r
+ // Check Vendor Id and Product Id.\r
+ //\r
+ Status = UsbIo->UsbGetDeviceDescriptor (UsbIo, &DevDesc);\r
+ if (EFI_ERROR (Status)) {\r
+ return FALSE;\r
+ }\r
+ if ((DevDesc.IdVendor != UsbWwid->VendorId) ||\r
+ (DevDesc.IdProduct != UsbWwid->ProductId)) {\r
+ return FALSE;\r
+ }\r
+\r
+ //\r
+ // Check Interface Number.\r
+ //\r
+ Status = UsbIo->UsbGetInterfaceDescriptor (UsbIo, &IfDesc);\r
+ if (EFI_ERROR (Status)) {\r
+ return FALSE;\r
+ }\r
+ if (IfDesc.InterfaceNumber != UsbWwid->InterfaceNumber) {\r
+ return FALSE;\r
+ }\r
+\r
+ //\r
+ // Check Serial Number.\r
+ //\r
+ if (DevDesc.StrSerialNumber == 0) {\r
+ return FALSE;\r
+ }\r
+\r
+ //\r
+ // Get all supported languages.\r
+ //\r
+ TableSize = 0;\r
+ LangIdTable = NULL;\r
+ Status = UsbIo->UsbGetSupportedLanguages (UsbIo, &LangIdTable, &TableSize);\r
+ if (EFI_ERROR (Status) || (TableSize == 0) || (LangIdTable == NULL)) {\r
+ return FALSE;\r
+ }\r
+\r
+ //\r
+ // Serial number in USB WWID device path is the last 64-or-less UTF-16 characters.\r
+ //\r
+ CompareStr = (CHAR16 *) (UINTN) (UsbWwid + 1);\r
+ CompareLen = (DevicePathNodeLength (UsbWwid) - sizeof (USB_WWID_DEVICE_PATH)) / sizeof (CHAR16);\r
+ if (CompareStr[CompareLen - 1] == L'\0') {\r
+ CompareLen--;\r
+ }\r
+\r
+ //\r
+ // Compare serial number in each supported language.\r
+ //\r
+ for (Index = 0; Index < TableSize / sizeof (UINT16); Index++) {\r
+ SerialNumberStr = NULL;\r
+ Status = UsbIo->UsbGetStringDescriptor (\r
+ UsbIo,\r
+ LangIdTable[Index],\r
+ DevDesc.StrSerialNumber,\r
+ &SerialNumberStr\r
+ );\r
+ if (EFI_ERROR (Status) || (SerialNumberStr == NULL)) {\r
+ continue;\r
+ }\r
+\r
+ Length = StrLen (SerialNumberStr);\r
+ if ((Length >= CompareLen) &&\r
+ (CompareMem (SerialNumberStr + Length - CompareLen, CompareStr, CompareLen * sizeof (CHAR16)) == 0)) {\r
+ FreePool (SerialNumberStr);\r
+ return TRUE;\r
+ }\r
+\r
+ FreePool (SerialNumberStr);\r
+ }\r
+\r
+ return FALSE;\r
+}\r
+\r
+/**\r
+ Compare whether a full console device path matches a USB shortform device path.\r
+\r
+ @param[in] FullPath Full console device path.\r
+ @param[in] ShortformPath Short-form device path. Short-form device node may in the beginning or in the middle.\r
+\r
+ @retval TRUE The full console device path matches the short-form device path.\r
+ @retval FALSE The full console device path doesn't match the short-form device path.\r
+**/\r
+BOOLEAN\r
+MatchUsbShortformDevicePath (\r
+ IN EFI_DEVICE_PATH_PROTOCOL *FullPath,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *ShortformPath\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_DEVICE_PATH_PROTOCOL *ShortformNode;\r
+ UINTN ParentDevicePathSize;\r
+ EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath;\r
+ EFI_USB_IO_PROTOCOL *UsbIo;\r
+ EFI_HANDLE Handle;\r
+\r
+ for ( ShortformNode = ShortformPath\r
+ ; !IsDevicePathEnd (ShortformNode)\r
+ ; ShortformNode = NextDevicePathNode (ShortformNode)\r
+ ) {\r
+ if ((DevicePathType (ShortformNode) == MESSAGING_DEVICE_PATH) &&\r
+ ((DevicePathSubType (ShortformNode) == MSG_USB_CLASS_DP) ||\r
+ (DevicePathSubType (ShortformNode) == MSG_USB_WWID_DP))\r
+ ) {\r
+ break;\r
+ }\r
+ }\r
+\r
+ //\r
+ // Skip further compare when it's not a shortform device path.\r
+ //\r
+ if (IsDevicePathEnd (ShortformNode)) {\r
+ return FALSE;\r
+ }\r
+\r
+ //\r
+ // Compare the parent device path when the ShortformPath doesn't start with short-form node.\r
+ //\r
+ ParentDevicePathSize = (UINTN) ShortformNode - (UINTN) ShortformPath;\r
+ RemainingDevicePath = FullPath;\r
+ Status = gBS->LocateDevicePath (&gEfiUsbIoProtocolGuid, &RemainingDevicePath, &Handle);\r
+ if (EFI_ERROR (Status)) {\r
+ return FALSE;\r
+ }\r
+ if (ParentDevicePathSize != 0) {\r
+ if ((ParentDevicePathSize > (UINTN) RemainingDevicePath - (UINTN) FullPath) ||\r
+ (CompareMem (FullPath, ShortformPath, ParentDevicePathSize) != 0)) {\r
+ return FALSE;\r
+ }\r
+ }\r
+\r
+ //\r
+ // Compar the USB layer.\r
+ //\r
+ Status = gBS->HandleProtocol(\r
+ Handle,\r
+ &gEfiUsbIoProtocolGuid,\r
+ (VOID **) &UsbIo\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ return MatchUsbClass (UsbIo, (USB_CLASS_DEVICE_PATH *)ShortformNode) ||\r
+ MatchUsbWwid (UsbIo, (USB_WWID_DEVICE_PATH *)ShortformNode);\r
+}\r
+\r
/**\r
Function compares a device path data structure to that of all the nodes of a\r
second device path instance.\r
// Search for the match of 'Single' in 'Multi'\r
//\r
while (DevicePathInst != NULL) {\r
- if ((CompareMem (Single, DevicePathInst, Size) == 0) || IsGopSibling (Single, DevicePathInst)) {\r
+ if ((CompareMem (Single, DevicePathInst, Size) == 0) ||\r
+ IsGopSibling (Single, DevicePathInst) || MatchUsbShortformDevicePath (Single, DevicePathInst)) {\r
if (!Delete) {\r
//\r
// If Delete is FALSE, return EFI_SUCCESS if Single is found in Multi.\r
}\r
\r
/**\r
- Update console environment variables. \r
+ Update console environment variables.\r
\r
@param VariableName Console environment variables, ConOutDev, ConInDev\r
ErrOutDev, ConIn ,ConOut or ErrOut.\r
if (Operation != Delete) {\r
//\r
// Match specified DevicePath in Console Variable.\r
- // \r
+ //\r
Status = ConPlatformMatchDevicePaths (\r
VariableDevicePath,\r
DevicePath,\r
return Status;\r
}\r
\r
-/**\r
- Check if the device supports hot-plug through its device path.\r
-\r
- This function could be updated to check more types of Hot Plug devices.\r
- Currently, it checks USB and PCCard device.\r
-\r
- @param DevicePath Pointer to device's device path.\r
-\r
- @retval TRUE The devcie is a hot-plug device\r
- @retval FALSE The devcie is not a hot-plug device.\r
-\r
-**/\r
-BOOLEAN\r
-IsHotPlugDevice (\r
- IN EFI_DEVICE_PATH_PROTOCOL *DevicePath\r
- )\r
-{\r
- EFI_DEVICE_PATH_PROTOCOL *CheckDevicePath;\r
-\r
- CheckDevicePath = DevicePath;\r
- while (!IsDevicePathEnd (CheckDevicePath)) {\r
- //\r
- // Check device whether is hot plug device or not throught Device Path\r
- // \r
- if ((DevicePathType (CheckDevicePath) == MESSAGING_DEVICE_PATH) &&\r
- (DevicePathSubType (CheckDevicePath) == MSG_USB_DP ||\r
- DevicePathSubType (CheckDevicePath) == MSG_USB_CLASS_DP ||\r
- DevicePathSubType (CheckDevicePath) == MSG_USB_WWID_DP)) {\r
- //\r
- // If Device is USB device\r
- //\r
- return TRUE;\r
- }\r
- if ((DevicePathType (CheckDevicePath) == HARDWARE_DEVICE_PATH) &&\r
- (DevicePathSubType (CheckDevicePath) == HW_PCCARD_DP)) {\r
- //\r
- // If Device is PCCard\r
- //\r
- return TRUE;\r
- }\r
- \r
- CheckDevicePath = NextDevicePathNode (CheckDevicePath);\r
- }\r
-\r
- return FALSE;\r
-}\r
-\r
/**\r
Update ConOutDev and ErrOutDev variables to add the device path of\r
GOP controller itself and the sibling controllers.\r
EFI_STATUS Status;\r
EFI_HANDLE PciHandle;\r
EFI_HANDLE GopHandle;\r
- EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfoBuffer;\r
- UINTN EntryCount;\r
- UINTN Index;\r
- EFI_DEVICE_PATH_PROTOCOL *ChildDevicePath;\r
EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r
\r
//\r
if (EFI_ERROR (Status)) {\r
return FALSE;\r
}\r
-\r
- Status = gBS->OpenProtocolInformation (\r
- PciHandle,\r
- &gEfiPciIoProtocolGuid,\r
- &OpenInfoBuffer,\r
- &EntryCount\r
- );\r
- if (EFI_ERROR (Status)) {\r
- return FALSE;\r
+ TempDevicePath = EfiBootManagerGetGopDevicePath (PciHandle);\r
+ if (TempDevicePath != NULL) {\r
+ ConPlatformUpdateDeviceVariable (L"ConOutDev", TempDevicePath, Append);\r
+ ConPlatformUpdateDeviceVariable (L"ErrOutDev", TempDevicePath, Append);\r
}\r
-\r
- for (Index = 0; Index < EntryCount; Index++) {\r
- //\r
- // Query all the children created by the GOP driver\r
- //\r
- if ((OpenInfoBuffer[Index].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) != 0) {\r
- Status = gBS->OpenProtocol (\r
- OpenInfoBuffer[Index].ControllerHandle,\r
- &gEfiDevicePathProtocolGuid,\r
- (VOID **) &ChildDevicePath,\r
- NULL,\r
- NULL,\r
- EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
- );\r
- if (!EFI_ERROR (Status)) {\r
- //\r
- // Append the device path to ConOutDev and ErrOutDev\r
- //\r
- ConPlatformUpdateDeviceVariable (L"ConOutDev", ChildDevicePath, Append);\r
- ConPlatformUpdateDeviceVariable (L"ErrOutDev", ChildDevicePath, Append);\r
- }\r
- }\r
- }\r
- FreePool (OpenInfoBuffer);\r
-\r
return TRUE;\r
}\r
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