EFI_STATUS
LocateSerialIo (
VOID
)
/*++
Routine Description:
Build a list containing all serial devices
Arguments:
Returns:
--*/
{
UINT8 *Ptr;
UINTN Index;
UINTN Index2;
UINTN NoHandles;
EFI_HANDLE *Handles;
EFI_STATUS Status;
ACPI_HID_DEVICE_PATH *Acpi;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
UINT32 Match;
EFI_SERIAL_IO_PROTOCOL *SerialIo;
EFI_DEVICE_PATH_PROTOCOL *OutDevicePath;
EFI_DEVICE_PATH_PROTOCOL *InpDevicePath;
EFI_DEVICE_PATH_PROTOCOL *ErrDevicePath;
BM_MENU_ENTRY *NewMenuEntry;
BM_TERMINAL_CONTEXT *NewTerminalContext;
EFI_DEVICE_PATH_PROTOCOL *NewDevicePath;
VENDOR_DEVICE_PATH Vendor;
//
// Get all handles that have SerialIo protocol installed
//
InitializeListHead (&TerminalMenu.Head);
TerminalMenu.MenuNumber = 0;
Status = gBS->LocateHandleBuffer (
ByProtocol,
&gEfiSerialIoProtocolGuid,
NULL,
&NoHandles,
&Handles
);
if (EFI_ERROR (Status)) {
//
// No serial ports present
//
return EFI_UNSUPPORTED;
}
//
// Sort Uart handles array with Acpi->UID from low to high
// then Terminal menu can be built from low Acpi->UID to high Acpi->UID
//
SortedUartHandle (Handles, NoHandles);
for (Index = 0; Index < NoHandles; Index++) {
//
// Check to see whether the handle has DevicePath Protocol installed
//
gBS->HandleProtocol (
Handles[Index],
&gEfiDevicePathProtocolGuid,
&DevicePath
);
Ptr = (UINT8 *) DevicePath;
while (*Ptr != END_DEVICE_PATH_TYPE) {
Ptr++;
}
Ptr = Ptr - sizeof (UART_DEVICE_PATH) - sizeof (ACPI_HID_DEVICE_PATH);
Acpi = (ACPI_HID_DEVICE_PATH *) Ptr;
Match = EISA_PNP_ID (0x0501);
if (EfiCompareMem (&Acpi->HID, &Match, sizeof (UINT32)) == 0) {
NewMenuEntry = BOpt_CreateMenuEntry (BM_TERMINAL_CONTEXT_SELECT);
if (!NewMenuEntry) {
SafeFreePool (Handles);
return EFI_OUT_OF_RESOURCES;
}
NewTerminalContext = (BM_TERMINAL_CONTEXT *) NewMenuEntry->VariableContext;
EfiCopyMem (&NewMenuEntry->OptionNumber, &Acpi->UID, sizeof (UINT32));
NewTerminalContext->DevicePath = DevicePathInstanceDup (DevicePath);
//
// BugBug: I have no choice, calling EfiLibStrFromDatahub will hang the system!
// coz' the misc data for each platform is not correct, actually it's the device path stored in
// datahub which is not completed, so a searching for end of device path will enter a
// dead-loop.
//
NewMenuEntry->DisplayString = EfiLibStrFromDatahub (DevicePath);
if (NULL == NewMenuEntry->DisplayString) {
NewMenuEntry->DisplayString = DevicePathToStr (DevicePath);
}
NewMenuEntry->HelpString = NULL;
gBS->HandleProtocol (
Handles[Index],
&gEfiSerialIoProtocolGuid,
&SerialIo
);
EfiCopyMem (
&NewTerminalContext->BaudRate,
&SerialIo->Mode->BaudRate,
sizeof (UINT64)
);
EfiCopyMem (
&NewTerminalContext->DataBits,
&SerialIo->Mode->DataBits,
sizeof (UINT8)
);
EfiCopyMem (
&NewTerminalContext->Parity,
&SerialIo->Mode->Parity,
sizeof (UINT8)
);
EfiCopyMem (
&NewTerminalContext->StopBits,
&SerialIo->Mode->StopBits,
sizeof (UINT8)
);
InsertTailList (&TerminalMenu.Head, &NewMenuEntry->Link);
TerminalMenu.MenuNumber++;
}
}
SafeFreePool (Handles);
//
// Get L"ConOut", L"ConIn" and L"ErrOut" from the Var
//
OutDevicePath = EfiLibGetVariable (L"ConOut", &gEfiGlobalVariableGuid);
InpDevicePath = EfiLibGetVariable (L"ConIn", &gEfiGlobalVariableGuid);
ErrDevicePath = EfiLibGetVariable (L"ErrOut", &gEfiGlobalVariableGuid);
if (OutDevicePath) {
UpdateComAttributeFromVariable (OutDevicePath);
}
if (InpDevicePath) {
UpdateComAttributeFromVariable (InpDevicePath);
}
if (ErrDevicePath) {
UpdateComAttributeFromVariable (ErrDevicePath);
}
for (Index = 0; Index < TerminalMenu.MenuNumber; Index++) {
NewMenuEntry = BOpt_GetMenuEntry (&TerminalMenu, Index);
if (NULL == NewMenuEntry) {
return EFI_NOT_FOUND;
}
NewTerminalContext = (BM_TERMINAL_CONTEXT *) NewMenuEntry->VariableContext;
NewTerminalContext->TerminalType = 0;
NewTerminalContext->IsConIn = FALSE;
NewTerminalContext->IsConOut = FALSE;
NewTerminalContext->IsStdErr = FALSE;
Vendor.Header.Type = MESSAGING_DEVICE_PATH;
Vendor.Header.SubType = MSG_VENDOR_DP;
for (Index2 = 0; Index2 < 4; Index2++) {
EfiCopyMem (&Vendor.Guid, &Guid[Index2], sizeof (EFI_GUID));
SetDevicePathNodeLength (&Vendor.Header, sizeof (VENDOR_DEVICE_PATH));
NewDevicePath = EfiAppendDevicePathNode (
NewTerminalContext->DevicePath,
(EFI_DEVICE_PATH_PROTOCOL *) &Vendor
);
SafeFreePool (NewMenuEntry->HelpString);
//
// NewMenuEntry->HelpString = DevicePathToStr (NewDevicePath);
// NewMenuEntry->DisplayString = NewMenuEntry->HelpString;
//
NewMenuEntry->HelpString = NULL;
if (BdsLibMatchDevicePaths (OutDevicePath, NewDevicePath)) {
NewTerminalContext->IsConOut = TRUE;
NewTerminalContext->TerminalType = (UINT8) Index2;
}
if (BdsLibMatchDevicePaths (InpDevicePath, NewDevicePath)) {
NewTerminalContext->IsConIn = TRUE;
NewTerminalContext->TerminalType = (UINT8) Index2;
}
if (BdsLibMatchDevicePaths (ErrDevicePath, NewDevicePath)) {
NewTerminalContext->IsStdErr = TRUE;
NewTerminalContext->TerminalType = (UINT8) Index2;
}
}
}
return EFI_SUCCESS;
}
EFI_STATUS
GetConsoleMenu (
IN UINTN ConsoleMenuType
)
{
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
EFI_DEVICE_PATH_PROTOCOL *AllDevicePath;
EFI_DEVICE_PATH_PROTOCOL *MultiDevicePath;
EFI_DEVICE_PATH_PROTOCOL *DevicePathInst;
UINTN Size;
UINTN AllCount;
UINTN Index;
UINTN Index2;
BM_MENU_ENTRY *NewMenuEntry;
BM_CONSOLE_CONTEXT *NewConsoleContext;
BM_TERMINAL_CONTEXT *NewTerminalContext;
TYPE_OF_TERMINAL Terminal;
BM_MENU_ENTRY *NewTerminalMenuEntry;
UINTN Com;
BM_MENU_OPTION *ConsoleMenu;
DevicePath = NULL;
AllDevicePath = NULL;
AllCount = 0;
switch (ConsoleMenuType) {
case BM_CONSOLE_IN_CONTEXT_SELECT:
ConsoleMenu = &ConsoleInpMenu;
DevicePath = EfiLibGetVariable (
L"ConIn",
&gEfiGlobalVariableGuid
);
AllDevicePath = EfiLibGetVariable (
L"ConInDev",
&gEfiGlobalVariableGuid
);
break;
case BM_CONSOLE_OUT_CONTEXT_SELECT:
ConsoleMenu = &ConsoleOutMenu;
DevicePath = EfiLibGetVariable (
L"ConOut",
&gEfiGlobalVariableGuid
);
AllDevicePath = EfiLibGetVariable (
L"ConOutDev",
&gEfiGlobalVariableGuid
);
break;
case BM_CONSOLE_ERR_CONTEXT_SELECT:
ConsoleMenu = &ConsoleErrMenu;
DevicePath = EfiLibGetVariable (
L"ErrOut",
&gEfiGlobalVariableGuid
);
AllDevicePath = EfiLibGetVariable (
L"ErrOutDev",
&gEfiGlobalVariableGuid
);
break;
default:
return EFI_UNSUPPORTED;
}
if (NULL == AllDevicePath) {
return EFI_NOT_FOUND;
}
InitializeListHead (&ConsoleMenu->Head);
AllCount = EfiDevicePathInstanceCount (AllDevicePath);
ConsoleMenu->MenuNumber = 0;
//
// Following is menu building up for Console Out Devices
//
MultiDevicePath = AllDevicePath;
Index2 = 0;
for (Index = 0; Index < AllCount; Index++) {
DevicePathInst = EfiDevicePathInstance (&MultiDevicePath, &Size);
NewMenuEntry = BOpt_CreateMenuEntry (BM_CONSOLE_CONTEXT_SELECT);
if (NULL == NewMenuEntry) {
return EFI_OUT_OF_RESOURCES;
}
NewConsoleContext = (BM_CONSOLE_CONTEXT *) NewMenuEntry->VariableContext;
NewMenuEntry->OptionNumber = Index2;
NewConsoleContext->DevicePath = DevicePathInstanceDup (DevicePathInst);
NewMenuEntry->DisplayString = EfiLibStrFromDatahub (NewConsoleContext->DevicePath);
if (NULL == NewMenuEntry->DisplayString) {
NewMenuEntry->DisplayString = DevicePathToStr (NewConsoleContext->DevicePath);
}
NewConsoleContext->IsTerminal = IsTerminalDevicePath (
NewConsoleContext->DevicePath,
&Terminal,
&Com
);
NewConsoleContext->IsActive = BdsLibMatchDevicePaths (
DevicePath,
NewConsoleContext->DevicePath
);
NewTerminalMenuEntry = NULL;
NewTerminalContext = NULL;
if (NewConsoleContext->IsTerminal) {
BOpt_DestroyMenuEntry (NewMenuEntry);
} else {
Index2++;
ConsoleMenu->MenuNumber++;
InsertTailList (&ConsoleMenu->Head, &NewMenuEntry->Link);
}
}
return EFI_SUCCESS;
}
/**
Build a list containing all serial devices.
@retval EFI_SUCCESS The function complete successfully.
@retval EFI_UNSUPPORTED No serial ports present.
**/
EFI_STATUS
LocateSerialIo (
VOID
)
{
UINTN Index;
UINTN Index2;
UINTN NoHandles;
EFI_HANDLE *Handles;
EFI_STATUS Status;
ACPI_HID_DEVICE_PATH *Acpi;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
EFI_SERIAL_IO_PROTOCOL *SerialIo;
EFI_DEVICE_PATH_PROTOCOL *Node;
EFI_DEVICE_PATH_PROTOCOL *OutDevicePath;
EFI_DEVICE_PATH_PROTOCOL *InpDevicePath;
EFI_DEVICE_PATH_PROTOCOL *ErrDevicePath;
BM_MENU_ENTRY *NewMenuEntry;
BM_TERMINAL_CONTEXT *NewTerminalContext;
EFI_DEVICE_PATH_PROTOCOL *NewDevicePath;
VENDOR_DEVICE_PATH Vendor;
UINT32 FlowControl;
//
// Get all handles that have SerialIo protocol installed
//
InitializeListHead (&TerminalMenu.Head);
TerminalMenu.MenuNumber = 0;
Status = gBS->LocateHandleBuffer (
ByProtocol,
&gEfiSerialIoProtocolGuid,
NULL,
&NoHandles,
&Handles
);
if (EFI_ERROR (Status)) {
//
// No serial ports present
//
return EFI_UNSUPPORTED;
}
//
// Sort Uart handles array with Acpi->UID from low to high
// then Terminal menu can be built from low Acpi->UID to high Acpi->UID
//
SortedUartHandle (Handles, NoHandles);
for (Index = 0; Index < NoHandles; Index++) {
//
// Check to see whether the handle has DevicePath Protocol installed
//
gBS->HandleProtocol (
Handles[Index],
&gEfiDevicePathProtocolGuid,
(VOID **) &DevicePath
);
Acpi = NULL;
for (Node = DevicePath; !IsDevicePathEnd (Node); Node = NextDevicePathNode (Node)) {
if ((DevicePathType (Node) == MESSAGING_DEVICE_PATH) && (DevicePathSubType (Node) == MSG_UART_DP)) {
break;
}
//
// Acpi points to the node before Uart node
//
Acpi = (ACPI_HID_DEVICE_PATH *) Node;
}
if ((Acpi != NULL) && IsIsaSerialNode (Acpi)) {
NewMenuEntry = BOpt_CreateMenuEntry (BM_TERMINAL_CONTEXT_SELECT);
if (NewMenuEntry == NULL) {
FreePool (Handles);
return EFI_OUT_OF_RESOURCES;
}
NewTerminalContext = (BM_TERMINAL_CONTEXT *) NewMenuEntry->VariableContext;
CopyMem (&NewMenuEntry->OptionNumber, &Acpi->UID, sizeof (UINT32));
NewTerminalContext->DevicePath = DuplicateDevicePath (DevicePath);
//
// BugBug: I have no choice, calling EfiLibStrFromDatahub will hang the system!
// coz' the misc data for each platform is not correct, actually it's the device path stored in
// datahub which is not completed, so a searching for end of device path will enter a
// dead-loop.
//
NewMenuEntry->DisplayString = EfiLibStrFromDatahub (DevicePath);
if (NULL == NewMenuEntry->DisplayString) {
NewMenuEntry->DisplayString = DevicePathToStr (DevicePath);
}
NewMenuEntry->HelpString = NULL;
gBS->HandleProtocol (
Handles[Index],
&gEfiSerialIoProtocolGuid,
(VOID **) &SerialIo
);
CopyMem (
&NewTerminalContext->BaudRate,
&SerialIo->Mode->BaudRate,
sizeof (UINT64)
);
CopyMem (
&NewTerminalContext->DataBits,
&SerialIo->Mode->DataBits,
sizeof (UINT8)
);
CopyMem (
&NewTerminalContext->Parity,
&SerialIo->Mode->Parity,
sizeof (UINT8)
);
CopyMem (
&NewTerminalContext->StopBits,
&SerialIo->Mode->StopBits,
sizeof (UINT8)
);
NewTerminalContext->FlowControl = 0;
SerialIo->GetControl(SerialIo, &FlowControl);
if ((FlowControl & EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE) != 0) {
NewTerminalContext->FlowControl = UART_FLOW_CONTROL_HARDWARE;
}
InsertTailList (&TerminalMenu.Head, &NewMenuEntry->Link);
TerminalMenu.MenuNumber++;
}
}
if (Handles != NULL) {
FreePool (Handles);
}
//
// Get L"ConOut", L"ConIn" and L"ErrOut" from the Var
//
OutDevicePath = EfiLibGetVariable (L"ConOut", &gEfiGlobalVariableGuid);
InpDevicePath = EfiLibGetVariable (L"ConIn", &gEfiGlobalVariableGuid);
ErrDevicePath = EfiLibGetVariable (L"ErrOut", &gEfiGlobalVariableGuid);
if (OutDevicePath != NULL) {
UpdateComAttributeFromVariable (OutDevicePath);
}
if (InpDevicePath != NULL) {
UpdateComAttributeFromVariable (InpDevicePath);
}
if (ErrDevicePath != NULL) {
UpdateComAttributeFromVariable (ErrDevicePath);
}
for (Index = 0; Index < TerminalMenu.MenuNumber; Index++) {
NewMenuEntry = BOpt_GetMenuEntry (&TerminalMenu, Index);
if (NULL == NewMenuEntry) {
return EFI_NOT_FOUND;
}
NewTerminalContext = (BM_TERMINAL_CONTEXT *) NewMenuEntry->VariableContext;
NewTerminalContext->TerminalType = 0;
NewTerminalContext->IsConIn = FALSE;
NewTerminalContext->IsConOut = FALSE;
NewTerminalContext->IsStdErr = FALSE;
Vendor.Header.Type = MESSAGING_DEVICE_PATH;
Vendor.Header.SubType = MSG_VENDOR_DP;
for (Index2 = 0; Index2 < 4; Index2++) {
CopyMem (&Vendor.Guid, &TerminalTypeGuid[Index2], sizeof (EFI_GUID));
SetDevicePathNodeLength (&Vendor.Header, sizeof (VENDOR_DEVICE_PATH));
NewDevicePath = AppendDevicePathNode (
NewTerminalContext->DevicePath,
(EFI_DEVICE_PATH_PROTOCOL *) &Vendor
);
if (NewMenuEntry->HelpString != NULL) {
FreePool (NewMenuEntry->HelpString);
}
//
// NewMenuEntry->HelpString = DevicePathToStr (NewDevicePath);
// NewMenuEntry->DisplayString = NewMenuEntry->HelpString;
//
NewMenuEntry->HelpString = NULL;
if (BdsLibMatchDevicePaths (OutDevicePath, NewDevicePath)) {
NewTerminalContext->IsConOut = TRUE;
NewTerminalContext->TerminalType = (UINT8) Index2;
}
if (BdsLibMatchDevicePaths (InpDevicePath, NewDevicePath)) {
NewTerminalContext->IsConIn = TRUE;
NewTerminalContext->TerminalType = (UINT8) Index2;
}
if (BdsLibMatchDevicePaths (ErrDevicePath, NewDevicePath)) {
NewTerminalContext->IsStdErr = TRUE;
NewTerminalContext->TerminalType = (UINT8) Index2;
}
}
}
return EFI_SUCCESS;
}
