/**
This function will connect all the console devices base on the console
device variable ConIn, ConOut and ErrOut.
**/
VOID
EFIAPI
EfiBootManagerConnectAllDefaultConsoles (
VOID
)
{
BOOLEAN SystemTableUpdated;
EfiBootManagerConnectConsoleVariable (ConOut, TRUE);
PERF_START (NULL, "ConOutReady", "BDS", 1);
PERF_END (NULL, "ConOutReady", "BDS", 0);
EfiBootManagerConnectConsoleVariable (ConIn, TRUE);
PERF_START (NULL, "ConInReady", "BDS", 1);
PERF_END (NULL, "ConInReady", "BDS", 0);
//
// The _ModuleEntryPoint err out var is legal.
//
EfiBootManagerConnectConsoleVariable (ErrOut, TRUE);
PERF_START (NULL, "ErrOutReady", "BDS", 1);
PERF_END (NULL, "ErrOutReady", "BDS", 0);
SystemTableUpdated = FALSE;
//
// Fill console handles in System Table if no console device assignd.
//
if (UpdateSystemTableConsole (L"ConIn", &gEfiSimpleTextInProtocolGuid, &gST->ConsoleInHandle, (VOID **) &gST->ConIn)) {
SystemTableUpdated = TRUE;
}
if (UpdateSystemTableConsole (L"ConOut", &gEfiSimpleTextOutProtocolGuid, &gST->ConsoleOutHandle, (VOID **) &gST->ConOut)) {
SystemTableUpdated = TRUE;
}
if (UpdateSystemTableConsole (L"ErrOut", &gEfiSimpleTextOutProtocolGuid, &gST->StandardErrorHandle, (VOID **) &gST->StdErr)) {
SystemTableUpdated = TRUE;
}
if (SystemTableUpdated) {
//
// Update the CRC32 in the EFI System Table header
//
gST->Hdr.CRC32 = 0;
gBS->CalculateCrc32 (
(UINT8 *) &gST->Hdr,
gST->Hdr.HeaderSize,
&gST->Hdr.CRC32
);
}
}
/**
Event to Connect ConIn.
@param Event Event whose notification function is being invoked.
@param Context Pointer to the notification function's context,
which is implementation-dependent.
**/
VOID
EFIAPI
BdsDxeOnConnectConInCallBack (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EFI_STATUS Status;
//
// When Osloader call ReadKeyStroke to signal this event
// no driver dependency is assumed existing. So use a non-dispatch version
//
Status = EfiBootManagerConnectConsoleVariable (ConIn);
if (EFI_ERROR (Status)) {
//
// Should not enter this case, if enter, the keyboard will not work.
// May need platfrom policy to connect keyboard.
//
DEBUG ((EFI_D_WARN, "[Bds] Connect ConIn failed - %r!!!\n", Status));
}
}
/**
This function will connect all the console devices base on the console
device variable ConIn, ConOut and ErrOut.
@retval EFI_DEVICE_ERROR All the consoles were not connected due to an error.
@retval EFI_SUCCESS Success connect any one instance of the console
device path base on the variable ConVarName.
**/
EFI_STATUS
EFIAPI
EfiBootManagerConnectAllDefaultConsoles (
VOID
)
{
EFI_STATUS Status;
BOOLEAN OneConnected;
BOOLEAN SystemTableUpdated;
OneConnected = FALSE;
Status = EfiBootManagerConnectConsoleVariable (ConOut);
if (!EFI_ERROR (Status)) {
OneConnected = TRUE;
}
PERF_START (NULL, "ConOutReady", "BDS", 1);
PERF_END (NULL, "ConOutReady", "BDS", 0);
Status = EfiBootManagerConnectConsoleVariable (ConIn);
if (!EFI_ERROR (Status)) {
OneConnected = TRUE;
}
PERF_START (NULL, "ConInReady", "BDS", 1);
PERF_END (NULL, "ConInReady", "BDS", 0);
Status = EfiBootManagerConnectConsoleVariable (ErrOut);
if (!EFI_ERROR (Status)) {
OneConnected = TRUE;
}
PERF_START (NULL, "ErrOutReady", "BDS", 1);
PERF_END (NULL, "ErrOutReady", "BDS", 0);
SystemTableUpdated = FALSE;
//
// Fill console handles in System Table if no console device assignd.
//
if (BmUpdateSystemTableConsole (L"ConIn", &gEfiSimpleTextInProtocolGuid, &gST->ConsoleInHandle, (VOID **) &gST->ConIn)) {
SystemTableUpdated = TRUE;
}
if (BmUpdateSystemTableConsole (L"ConOut", &gEfiSimpleTextOutProtocolGuid, &gST->ConsoleOutHandle, (VOID **) &gST->ConOut)) {
SystemTableUpdated = TRUE;
}
if (BmUpdateSystemTableConsole (L"ErrOut", &gEfiSimpleTextOutProtocolGuid, &gST->StandardErrorHandle, (VOID **) &gST->StdErr)) {
SystemTableUpdated = TRUE;
}
if (SystemTableUpdated) {
//
// Update the CRC32 in the EFI System Table header
//
gST->Hdr.CRC32 = 0;
gBS->CalculateCrc32 (
(UINT8 *) &gST->Hdr,
gST->Hdr.HeaderSize,
&gST->Hdr.CRC32
);
}
return OneConnected ? EFI_SUCCESS : EFI_DEVICE_ERROR;
}
