DriverName = NULL;
//
// See if Handle is a device handle and display its details.
//
DriverBindingHandleBuffer = NULL;
Status = PARSE_HANDLE_DATABASE_UEFI_DRIVERS (
Handle,
&DriverBindingHandleCount,
&DriverBindingHandleBuffer
);
ParentControllerHandleBuffer = NULL;
Status = PARSE_HANDLE_DATABASE_PARENTS (
Handle,
&ParentControllerHandleCount,
&ParentControllerHandleBuffer
);
ChildControllerHandleBuffer = NULL;
Status = ParseHandleDatabaseForChildControllers (
Handle,
&ChildControllerHandleCount,
&ChildControllerHandleBuffer
);
DiagnosticsStatus = FALSE;
ConfigurationStatus = FALSE;
if (!EFI_ERROR(gBS->OpenProtocol(Handle, &gEfiDriverConfigurationProtocolGuid, NULL, NULL, gImageHandle, EFI_OPEN_PROTOCOL_TEST_PROTOCOL))) {
ConfigurationStatus = TRUE;
/**
Get lots of info about a device from its handle.
@param[in] TheHandle The device handle to get info on.
@param[in, out] Type On successful return R, B, or D (root, bus, or
device) will be placed in this buffer.
@param[in, out] Cfg On successful return this buffer will be
TRUE if the handle has configuration, FALSE
otherwise.
@param[in, out] Diag On successful return this buffer will be
TRUE if the handle has disgnostics, FALSE
otherwise.
@param[in, out] Parents On successful return this buffer will be
contain the number of parent handles.
@param[in, out] Devices On successful return this buffer will be
contain the number of devices controlled.
@param[in, out] Children On successful return this buffer will be
contain the number of child handles.
@param[out] Name The pointer to a buffer that will be allocated
and contain the string name of the handle.
The caller must free this memory.
@param[in] Language The language code as defined by the UEFI spec.
@retval EFI_SUCCESS The info is there.
@retval EFI_INVALID_PARAMETER A parameter was invalid.
**/
EFI_STATUS
GetDeviceHandleInfo (
IN EFI_HANDLE TheHandle,
IN OUT CHAR16 *Type,
IN OUT BOOLEAN *Cfg,
IN OUT BOOLEAN *Diag,
IN OUT UINTN *Parents,
IN OUT UINTN *Devices,
IN OUT UINTN *Children,
OUT CHAR16 **Name,
IN CONST CHAR8 *Language
)
{
EFI_STATUS Status;
EFI_HANDLE *HandleBuffer;
UINTN Count;
if (TheHandle == NULL
|| Type == NULL
|| Cfg == NULL
|| Diag == NULL
|| Parents == NULL
|| Devices == NULL
|| Children == NULL
|| Name == NULL ) {
return (EFI_INVALID_PARAMETER);
}
*Cfg = FALSE;
*Diag = FALSE;
*Children = 0;
*Parents = 0;
*Devices = 0;
*Type = L' ';
*Name = CHAR_NULL;
HandleBuffer = NULL;
Status = EFI_SUCCESS;
gEfiShellProtocol->GetDeviceName(TheHandle, EFI_DEVICE_NAME_USE_COMPONENT_NAME|EFI_DEVICE_NAME_USE_DEVICE_PATH, (CHAR8*)Language, Name);
Status = ParseHandleDatabaseForChildControllers(TheHandle, Children, NULL);
// if (!EFI_ERROR(Status)) {
Status = PARSE_HANDLE_DATABASE_PARENTS(TheHandle, Parents, NULL);
if (/*!EFI_ERROR(Status) && */Parents != NULL && Children != NULL) {
if (*Parents == 0) {
*Type = L'R';
} else if (*Children > 0) {
*Type = L'B';
} else {
*Type = L'D';
}
}
// }
Status = PARSE_HANDLE_DATABASE_UEFI_DRIVERS(TheHandle, Devices, &HandleBuffer);
if (!EFI_ERROR(Status) && Devices != NULL && HandleBuffer != NULL) {
for (Count = 0 ; Count < *Devices ; Count++) {
if (!EFI_ERROR(gBS->OpenProtocol(HandleBuffer[Count], &gEfiDriverConfigurationProtocolGuid, NULL, NULL, gImageHandle, EFI_OPEN_PROTOCOL_TEST_PROTOCOL))) {
*Cfg = TRUE;
}
if (!EFI_ERROR(gBS->OpenProtocol(HandleBuffer[Count], &gEfiDriverDiagnosticsProtocolGuid, NULL, NULL, gImageHandle, EFI_OPEN_PROTOCOL_TEST_PROTOCOL))) {
*Diag = TRUE;
}
if (!EFI_ERROR(gBS->OpenProtocol(HandleBuffer[Count], &gEfiDriverDiagnostics2ProtocolGuid, NULL, NULL, gImageHandle, EFI_OPEN_PROTOCOL_TEST_PROTOCOL))) {
*Diag = TRUE;
}
}
SHELL_FREE_NON_NULL(HandleBuffer);
}
return (Status);
}