Differential D6781 Diff 19353 head/sys/boot/efi/libefi/efi_console.c

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	efi_cons_getchar()			efi_cons_getchar()
	{			{
	EFI_INPUT_KEY key;			EFI_INPUT_KEY key;
	EFI_STATUS status;			EFI_STATUS status;
	UINTN junk;			UINTN junk;

	/* Try to read a key stroke. We wait for one if none is pending. */			/* Try to read a key stroke. We wait for one if none is pending. */
	status = conin->ReadKeyStroke(conin, &key);			status = conin->ReadKeyStroke(conin, &key);
	if (status == EFI_NOT_READY) {			while (status == EFI_NOT_READY) {
				/* Some EFI implementation (u-boot for example) do not support WaitForKey */
				if (conin->WaitForKey != NULL)
	BS->WaitForEvent(1, &conin->WaitForKey, &junk);			BS->WaitForEvent(1, &conin->WaitForKey, &junk);
	status = conin->ReadKeyStroke(conin, &key);			status = conin->ReadKeyStroke(conin, &key);
	}			}
	switch (key.ScanCode) {			switch (key.ScanCode) {
	case 0x17: /* ESC */			case 0x17: /* ESC */
	return (0x1b); /* esc */			return (0x1b); /* esc */
	}			}

	/* this can return */			/* this can return */
	return (key.UnicodeChar);			return (key.UnicodeChar);
	}			}

	int			int
	efi_cons_poll()			efi_cons_poll()
	{			{

				if (conin->WaitForKey == NULL)
				return (1);
	/* This can clear the signaled state. */			/* This can clear the signaled state. */
	return (BS->CheckEvent(conin->WaitForKey) == EFI_SUCCESS);			return (BS->CheckEvent(conin->WaitForKey) == EFI_SUCCESS);
	}			}

	/* Plain direct access to EFI OutputString(). */			/* Plain direct access to EFI OutputString(). */
	void			void
	efi_cons_efiputchar(int c)			efi_cons_efiputchar(int c)
	{			{
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