diff options
Diffstat (limited to 'IntelFrameworkModulePkg/Library/GenericBdsLib/BdsConsole.c')
| -rw-r--r-- | IntelFrameworkModulePkg/Library/GenericBdsLib/BdsConsole.c | 212 |
1 files changed, 136 insertions, 76 deletions
diff --git a/IntelFrameworkModulePkg/Library/GenericBdsLib/BdsConsole.c b/IntelFrameworkModulePkg/Library/GenericBdsLib/BdsConsole.c index 280b1697b6..782c4a5ce1 100644 --- a/IntelFrameworkModulePkg/Library/GenericBdsLib/BdsConsole.c +++ b/IntelFrameworkModulePkg/Library/GenericBdsLib/BdsConsole.c @@ -172,6 +172,114 @@ UpdateSystemTableConsole ( }
/**
+ Connect the console device base on the variable ConVarName, if
+ device path of the ConVarName is multi-instance device path and
+ anyone of the instances is connected success, this function will
+ return success.
+ Dispatch service is called basing on input when the handle associate
+ with one device path node can not be created successfully. Since in
+ some cases we assume driver dependency does not exist and do not
+ need to call this service.
+
+ @param ConVarName Console related variable name, ConIn, ConOut,
+ ErrOut.
+ @param NeedDispatch Whether requires dispatch service during connection
+
+ @retval EFI_NOT_FOUND There is not any console devices connected
+ success
+ @retval EFI_SUCCESS Success connect any one instance of the console
+ device path base on the variable ConVarName.
+
+**/
+EFI_STATUS
+ConnectConsoleVariableInternal (
+ IN CHAR16 *ConVarName,
+ IN BOOLEAN NeedDispatch
+ )
+{
+ EFI_STATUS Status;
+ EFI_DEVICE_PATH_PROTOCOL *StartDevicePath;
+ UINTN VariableSize;
+ EFI_DEVICE_PATH_PROTOCOL *Instance;
+ EFI_DEVICE_PATH_PROTOCOL *Next;
+ EFI_DEVICE_PATH_PROTOCOL *CopyOfDevicePath;
+ UINTN Size;
+ BOOLEAN DeviceExist;
+
+ Status = EFI_SUCCESS;
+ DeviceExist = FALSE;
+
+ //
+ // Check if the console variable exist
+ //
+ StartDevicePath = BdsLibGetVariableAndSize (
+ ConVarName,
+ &gEfiGlobalVariableGuid,
+ &VariableSize
+ );
+ if (StartDevicePath == NULL) {
+ return EFI_UNSUPPORTED;
+ }
+
+ CopyOfDevicePath = StartDevicePath;
+ do {
+ //
+ // Check every instance of the console variable
+ //
+ Instance = GetNextDevicePathInstance (&CopyOfDevicePath, &Size);
+ if (Instance == NULL) {
+ FreePool (StartDevicePath);
+ return EFI_UNSUPPORTED;
+ }
+
+ Next = Instance;
+ while (!IsDevicePathEndType (Next)) {
+ Next = NextDevicePathNode (Next);
+ }
+
+ SetDevicePathEndNode (Next);
+ //
+ // Connect the USB console
+ // USB console device path is a short-form device path that
+ // starts with the first element being a USB WWID
+ // or a USB Class device path
+ //
+ if ((DevicePathType (Instance) == MESSAGING_DEVICE_PATH) &&
+ ((DevicePathSubType (Instance) == MSG_USB_CLASS_DP)
+ || (DevicePathSubType (Instance) == MSG_USB_WWID_DP)
+ )) {
+ Status = BdsLibConnectUsbDevByShortFormDP (0xFF, Instance);
+ if (!EFI_ERROR (Status)) {
+ DeviceExist = TRUE;
+ }
+ } else {
+ //
+ // Connect the instance device path
+ //
+ Status = ConnectDevicePathInternal (Instance, NeedDispatch);
+
+ if (EFI_ERROR (Status)) {
+ //
+ // Delete the instance from the console varialbe
+ //
+ BdsLibUpdateConsoleVariable (ConVarName, NULL, Instance);
+ } else {
+ DeviceExist = TRUE;
+ }
+ }
+ FreePool(Instance);
+ } while (CopyOfDevicePath != NULL);
+
+ FreePool (StartDevicePath);
+
+ if (!DeviceExist) {
+ return EFI_NOT_FOUND;
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
This function update console variable based on ConVarName, it can
add or remove one specific console device path from the variable
@@ -307,9 +415,12 @@ BdsLibUpdateConsoleVariable ( /**
Connect the console device base on the variable ConVarName, if
- device path of the ConVarName is multi-instance device path, if
+ device path of the ConVarName is multi-instance device path and
anyone of the instances is connected success, then this function
will return success.
+ If the handle associate with one device path node can not
+ be created successfully, then still give chance to do the dispatch,
+ which load the missing drivers if possible..
@param ConVarName Console related variable name, ConIn, ConOut,
ErrOut.
@@ -326,88 +437,37 @@ BdsLibConnectConsoleVariable ( IN CHAR16 *ConVarName
)
{
- EFI_STATUS Status;
- EFI_DEVICE_PATH_PROTOCOL *StartDevicePath;
- UINTN VariableSize;
- EFI_DEVICE_PATH_PROTOCOL *Instance;
- EFI_DEVICE_PATH_PROTOCOL *Next;
- EFI_DEVICE_PATH_PROTOCOL *CopyOfDevicePath;
- UINTN Size;
- BOOLEAN DeviceExist;
-
- Status = EFI_SUCCESS;
- DeviceExist = FALSE;
+ return ConnectConsoleVariableInternal(ConVarName, TRUE);
+}
- //
- // Check if the console variable exist
- //
- StartDevicePath = BdsLibGetVariableAndSize (
- ConVarName,
- &gEfiGlobalVariableGuid,
- &VariableSize
- );
- if (StartDevicePath == NULL) {
- return EFI_UNSUPPORTED;
- }
+/**
+ Connect the console device base on the variable ConVarName, if
+ device path of the ConVarName is multi-instance device path and
+ anyone of the instances is connected success, then this function
+ will return success.
+ Dispatch service is not called when the handle associate with one
+ device path node can not be created successfully. Here no driver
+ dependency is assumed exist, so need not to call this service.
- CopyOfDevicePath = StartDevicePath;
- do {
- //
- // Check every instance of the console variable
- //
- Instance = GetNextDevicePathInstance (&CopyOfDevicePath, &Size);
- if (Instance == NULL) {
- FreePool (StartDevicePath);
- return EFI_UNSUPPORTED;
- }
-
- Next = Instance;
- while (!IsDevicePathEndType (Next)) {
- Next = NextDevicePathNode (Next);
- }
- SetDevicePathEndNode (Next);
- //
- // Connect the USB console
- // USB console device path is a short-form device path that
- // starts with the first element being a USB WWID
- // or a USB Class device path
- //
- if ((DevicePathType (Instance) == MESSAGING_DEVICE_PATH) &&
- ((DevicePathSubType (Instance) == MSG_USB_CLASS_DP)
- || (DevicePathSubType (Instance) == MSG_USB_WWID_DP)
- )) {
- Status = BdsLibConnectUsbDevByShortFormDP (0xFF, Instance);
- if (!EFI_ERROR (Status)) {
- DeviceExist = TRUE;
- }
- } else {
- //
- // Connect the instance device path
- //
- Status = BdsLibConnectDevicePath (Instance);
- if (EFI_ERROR (Status)) {
- //
- // Delete the instance from the console varialbe
- //
- BdsLibUpdateConsoleVariable (ConVarName, NULL, Instance);
- } else {
- DeviceExist = TRUE;
- }
- }
- FreePool(Instance);
- } while (CopyOfDevicePath != NULL);
-
- FreePool (StartDevicePath);
+ @param ConVarName Console related variable name, ConIn, ConOut,
+ ErrOut.
- if (!DeviceExist) {
- return EFI_NOT_FOUND;
- }
+ @retval EFI_NOT_FOUND There is not any console devices connected
+ success
+ @retval EFI_SUCCESS Success connect any one instance of the console
+ device path base on the variable ConVarName.
- return EFI_SUCCESS;
+**/
+EFI_STATUS
+EFIAPI
+BdsLibConnectConsoleVariableWithOutDispatch (
+ IN CHAR16 *ConVarName
+ )
+{
+ return ConnectConsoleVariableInternal(ConVarName, FALSE);
}
-
/**
This function will search every simpletext device in current system,
and make every simpletext device as pertantial console device.
|