mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-18 15:27:48 +01:00
1842 lines
52 KiB
C
1842 lines
52 KiB
C
/** @file
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Implementation for EFI_SIMPLE_TEXT_INPUT_PROTOCOL protocol.
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(C) Copyright 2014 Hewlett-Packard Development Company, L.P.<BR>
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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Copyright (C) 2016 Silicon Graphics, Inc. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "Terminal.h"
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/**
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Reads the next keystroke from the input device. The WaitForKey Event can
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be used to test for existence of a keystroke via WaitForEvent () call.
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@param TerminalDevice Terminal driver private structure
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@param KeyData A pointer to a buffer that is filled in with the
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keystroke state data for the key that was
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pressed.
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@retval EFI_SUCCESS The keystroke information was returned.
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@retval EFI_NOT_READY There was no keystroke data available.
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@retval EFI_INVALID_PARAMETER KeyData is NULL.
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**/
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EFI_STATUS
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ReadKeyStrokeWorker (
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IN TERMINAL_DEV *TerminalDevice,
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OUT EFI_KEY_DATA *KeyData
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)
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{
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if (KeyData == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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KeyData->KeyState.KeyShiftState = 0;
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KeyData->KeyState.KeyToggleState = 0;
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if (!EfiKeyFiFoRemoveOneKey (TerminalDevice, &KeyData->Key)) {
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return EFI_NOT_READY;
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}
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return EFI_SUCCESS;
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}
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/**
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Implements EFI_SIMPLE_TEXT_INPUT_PROTOCOL.Reset().
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This driver only perform dependent serial device reset regardless of
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the value of ExtendeVerification
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@param This Indicates the calling context.
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@param ExtendedVerification Skip by this driver.
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@retval EFI_SUCCESS The reset operation succeeds.
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@retval EFI_DEVICE_ERROR The dependent serial port reset fails.
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**/
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EFI_STATUS
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EFIAPI
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TerminalConInReset (
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IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
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IN BOOLEAN ExtendedVerification
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)
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{
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EFI_STATUS Status;
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TERMINAL_DEV *TerminalDevice;
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TerminalDevice = TERMINAL_CON_IN_DEV_FROM_THIS (This);
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//
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// Report progress code here
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//
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REPORT_STATUS_CODE_WITH_DEVICE_PATH (
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EFI_PROGRESS_CODE,
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(EFI_PERIPHERAL_REMOTE_CONSOLE | EFI_P_PC_RESET),
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TerminalDevice->DevicePath
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);
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Status = TerminalDevice->SerialIo->Reset (TerminalDevice->SerialIo);
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//
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// Make all the internal buffer empty for keys
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//
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TerminalDevice->RawFiFo->Head = TerminalDevice->RawFiFo->Tail;
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TerminalDevice->UnicodeFiFo->Head = TerminalDevice->UnicodeFiFo->Tail;
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TerminalDevice->EfiKeyFiFo->Head = TerminalDevice->EfiKeyFiFo->Tail;
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TerminalDevice->EfiKeyFiFoForNotify->Head = TerminalDevice->EfiKeyFiFoForNotify->Tail;
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if (EFI_ERROR(Status)) {
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REPORT_STATUS_CODE_WITH_DEVICE_PATH (
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EFI_ERROR_CODE | EFI_ERROR_MINOR,
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(EFI_PERIPHERAL_REMOTE_CONSOLE | EFI_P_EC_CONTROLLER_ERROR),
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TerminalDevice->DevicePath
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);
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}
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return Status;
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}
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/**
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Implements EFI_SIMPLE_TEXT_INPUT_PROTOCOL.ReadKeyStroke().
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@param This Indicates the calling context.
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@param Key A pointer to a buffer that is filled in with the
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keystroke information for the key that was sent
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from terminal.
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@retval EFI_SUCCESS The keystroke information is returned successfully.
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@retval EFI_NOT_READY There is no keystroke data available.
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@retval EFI_DEVICE_ERROR The dependent serial device encounters error.
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**/
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EFI_STATUS
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EFIAPI
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TerminalConInReadKeyStroke (
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IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
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OUT EFI_INPUT_KEY *Key
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)
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{
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TERMINAL_DEV *TerminalDevice;
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EFI_STATUS Status;
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EFI_KEY_DATA KeyData;
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//
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// get TERMINAL_DEV from "This" parameter.
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//
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TerminalDevice = TERMINAL_CON_IN_DEV_FROM_THIS (This);
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Status = ReadKeyStrokeWorker (TerminalDevice, &KeyData);
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if (EFI_ERROR(Status)) {
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return Status;
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}
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CopyMem(Key, &KeyData.Key, sizeof (EFI_INPUT_KEY));
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return EFI_SUCCESS;
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}
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/**
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Check if the key already has been registered.
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If both RegsiteredData and InputData is NULL, then ASSERT().
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@param RegsiteredData A pointer to a buffer that is filled in with the
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keystroke state data for the key that was
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registered.
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@param InputData A pointer to a buffer that is filled in with the
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keystroke state data for the key that was
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pressed.
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@retval TRUE Key be pressed matches a registered key.
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@retval FALSE Match failed.
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**/
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BOOLEAN
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IsKeyRegistered (
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IN EFI_KEY_DATA *RegsiteredData,
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IN EFI_KEY_DATA *InputData
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)
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{
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ASSERT (RegsiteredData != NULL && InputData != NULL);
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if ((RegsiteredData->Key.ScanCode != InputData->Key.ScanCode) ||
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(RegsiteredData->Key.UnicodeChar != InputData->Key.UnicodeChar)) {
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return FALSE;
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}
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return TRUE;
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}
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/**
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Event notification function for EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL.WaitForKeyEx event
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Signal the event if there is key available
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@param Event Indicates the event that invoke this function.
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@param Context Indicates the calling context.
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**/
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VOID
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EFIAPI
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TerminalConInWaitForKeyEx (
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IN EFI_EVENT Event,
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IN VOID *Context
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)
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{
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TerminalConInWaitForKey (Event, Context);
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}
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//
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// Simple Text Input Ex protocol functions
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//
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/**
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Reset the input device and optionally run diagnostics
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@param This Protocol instance pointer.
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@param ExtendedVerification Driver may perform diagnostics on reset.
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@retval EFI_SUCCESS The device was reset.
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@retval EFI_DEVICE_ERROR The device is not functioning properly and could
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not be reset.
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**/
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EFI_STATUS
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EFIAPI
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TerminalConInResetEx (
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IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
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IN BOOLEAN ExtendedVerification
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)
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{
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EFI_STATUS Status;
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TERMINAL_DEV *TerminalDevice;
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TerminalDevice = TERMINAL_CON_IN_EX_DEV_FROM_THIS (This);
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Status = TerminalDevice->SimpleInput.Reset (&TerminalDevice->SimpleInput, ExtendedVerification);
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if (EFI_ERROR(Status)) {
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return EFI_DEVICE_ERROR;
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}
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return EFI_SUCCESS;
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}
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/**
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Reads the next keystroke from the input device. The WaitForKey Event can
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be used to test for existence of a keystroke via WaitForEvent () call.
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@param This Protocol instance pointer.
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@param KeyData A pointer to a buffer that is filled in with the
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keystroke state data for the key that was
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pressed.
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@retval EFI_SUCCESS The keystroke information was returned.
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@retval EFI_NOT_READY There was no keystroke data available.
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@retval EFI_DEVICE_ERROR The keystroke information was not returned due
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to hardware errors.
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@retval EFI_INVALID_PARAMETER KeyData is NULL.
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**/
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EFI_STATUS
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EFIAPI
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TerminalConInReadKeyStrokeEx (
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IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
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OUT EFI_KEY_DATA *KeyData
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)
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{
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TERMINAL_DEV *TerminalDevice;
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if (KeyData == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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TerminalDevice = TERMINAL_CON_IN_EX_DEV_FROM_THIS (This);
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return ReadKeyStrokeWorker (TerminalDevice, KeyData);
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}
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/**
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Set certain state for the input device.
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@param This Protocol instance pointer.
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@param KeyToggleState A pointer to the EFI_KEY_TOGGLE_STATE to set the
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state for the input device.
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@retval EFI_SUCCESS The device state was set successfully.
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@retval EFI_DEVICE_ERROR The device is not functioning correctly and
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could not have the setting adjusted.
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@retval EFI_UNSUPPORTED The device does not have the ability to set its
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state.
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@retval EFI_INVALID_PARAMETER KeyToggleState is NULL.
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**/
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EFI_STATUS
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EFIAPI
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TerminalConInSetState (
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IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
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IN EFI_KEY_TOGGLE_STATE *KeyToggleState
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)
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{
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if (KeyToggleState == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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if ((*KeyToggleState & EFI_TOGGLE_STATE_VALID) != EFI_TOGGLE_STATE_VALID) {
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return EFI_UNSUPPORTED;
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}
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return EFI_SUCCESS;
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}
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/**
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Register a notification function for a particular keystroke for the input device.
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@param This Protocol instance pointer.
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@param KeyData A pointer to a buffer that is filled in with
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the keystroke information for the key that was
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pressed. If KeyData.Key, KeyData.KeyState.KeyToggleState
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and KeyData.KeyState.KeyShiftState are 0, then any incomplete
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keystroke will trigger a notification of the KeyNotificationFunction.
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@param KeyNotificationFunction Points to the function to be called when the key
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sequence is typed specified by KeyData. This notification function
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should be called at <=TPL_CALLBACK.
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@param NotifyHandle Points to the unique handle assigned to the
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registered notification.
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@retval EFI_SUCCESS The notification function was registered
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successfully.
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@retval EFI_OUT_OF_RESOURCES Unable to allocate resources for necessary data
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structures.
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@retval EFI_INVALID_PARAMETER KeyData or NotifyHandle is NULL.
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**/
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EFI_STATUS
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EFIAPI
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TerminalConInRegisterKeyNotify (
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IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
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IN EFI_KEY_DATA *KeyData,
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IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,
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OUT VOID **NotifyHandle
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)
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{
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TERMINAL_DEV *TerminalDevice;
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TERMINAL_CONSOLE_IN_EX_NOTIFY *NewNotify;
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LIST_ENTRY *Link;
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LIST_ENTRY *NotifyList;
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TERMINAL_CONSOLE_IN_EX_NOTIFY *CurrentNotify;
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if (KeyData == NULL || NotifyHandle == NULL || KeyNotificationFunction == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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TerminalDevice = TERMINAL_CON_IN_EX_DEV_FROM_THIS (This);
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//
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// Return EFI_SUCCESS if the (KeyData, NotificationFunction) is already registered.
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//
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NotifyList = &TerminalDevice->NotifyList;
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for (Link = GetFirstNode (NotifyList); !IsNull (NotifyList,Link); Link = GetNextNode (NotifyList,Link)) {
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CurrentNotify = CR (
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Link,
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TERMINAL_CONSOLE_IN_EX_NOTIFY,
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NotifyEntry,
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TERMINAL_CONSOLE_IN_EX_NOTIFY_SIGNATURE
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);
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if (IsKeyRegistered (&CurrentNotify->KeyData, KeyData)) {
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if (CurrentNotify->KeyNotificationFn == KeyNotificationFunction) {
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*NotifyHandle = CurrentNotify;
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return EFI_SUCCESS;
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}
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}
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}
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//
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// Allocate resource to save the notification function
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//
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NewNotify = (TERMINAL_CONSOLE_IN_EX_NOTIFY *) AllocateZeroPool(sizeof (TERMINAL_CONSOLE_IN_EX_NOTIFY));
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if (NewNotify == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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NewNotify->Signature = TERMINAL_CONSOLE_IN_EX_NOTIFY_SIGNATURE;
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NewNotify->KeyNotificationFn = KeyNotificationFunction;
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CopyMem(&NewNotify->KeyData, KeyData, sizeof (EFI_KEY_DATA));
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InsertTailList (&TerminalDevice->NotifyList, &NewNotify->NotifyEntry);
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*NotifyHandle = NewNotify;
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return EFI_SUCCESS;
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}
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/**
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Remove a registered notification function from a particular keystroke.
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@param This Protocol instance pointer.
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@param NotificationHandle The handle of the notification function being
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unregistered.
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@retval EFI_SUCCESS The notification function was unregistered
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successfully.
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@retval EFI_INVALID_PARAMETER The NotificationHandle is invalid.
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**/
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EFI_STATUS
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EFIAPI
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TerminalConInUnregisterKeyNotify (
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IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
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IN VOID *NotificationHandle
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)
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{
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TERMINAL_DEV *TerminalDevice;
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LIST_ENTRY *Link;
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TERMINAL_CONSOLE_IN_EX_NOTIFY *CurrentNotify;
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LIST_ENTRY *NotifyList;
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if (NotificationHandle == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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TerminalDevice = TERMINAL_CON_IN_EX_DEV_FROM_THIS (This);
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NotifyList = &TerminalDevice->NotifyList;
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for (Link = GetFirstNode (NotifyList); !IsNull (NotifyList,Link); Link = GetNextNode (NotifyList,Link)) {
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CurrentNotify = CR (
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Link,
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TERMINAL_CONSOLE_IN_EX_NOTIFY,
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NotifyEntry,
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TERMINAL_CONSOLE_IN_EX_NOTIFY_SIGNATURE
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);
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if (CurrentNotify == NotificationHandle) {
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//
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// Remove the notification function from NotifyList and free resources
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//
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RemoveEntryList (&CurrentNotify->NotifyEntry);
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gBS->FreePool(CurrentNotify);
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return EFI_SUCCESS;
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}
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}
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//
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// Can not find the matching entry in database.
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//
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return EFI_INVALID_PARAMETER;
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}
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/**
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Translate raw data into Unicode (according to different encode), and
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translate Unicode into key information. (according to different standard).
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@param TerminalDevice Terminal driver private structure.
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**/
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VOID
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TranslateRawDataToEfiKey (
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IN TERMINAL_DEV *TerminalDevice
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)
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{
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switch (TerminalDevice->TerminalType) {
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case TerminalTypePcAnsi:
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case TerminalTypeVt100:
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case TerminalTypeVt100Plus:
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case TerminalTypeTtyTerm:
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AnsiRawDataToUnicode (TerminalDevice);
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UnicodeToEfiKey (TerminalDevice);
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break;
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case TerminalTypeVtUtf8:
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//
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// Process all the raw data in the RawFIFO,
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// put the processed key into UnicodeFIFO.
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//
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VTUTF8RawDataToUnicode (TerminalDevice);
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//
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// Translate all the Unicode data in the UnicodeFIFO to Efi key,
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// then put into EfiKeyFIFO.
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//
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UnicodeToEfiKey (TerminalDevice);
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break;
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}
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}
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|
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/**
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Event notification function for EFI_SIMPLE_TEXT_INPUT_PROTOCOL.WaitForKey event
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Signal the event if there is key available
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|
|
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@param Event Indicates the event that invoke this function.
|
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@param Context Indicates the calling context.
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**/
|
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VOID
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EFIAPI
|
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TerminalConInWaitForKey (
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IN EFI_EVENT Event,
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IN VOID *Context
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)
|
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{
|
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//
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// Someone is waiting on the keystroke event, if there's
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// a key pending, signal the event
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//
|
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if (!IsEfiKeyFiFoEmpty ((TERMINAL_DEV *) Context)) {
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gBS->SignalEvent (Event);
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}
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}
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|
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/**
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Timer handler to poll the key from serial.
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|
|
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@param Event Indicates the event that invoke this function.
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@param Context Indicates the calling context.
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**/
|
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VOID
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EFIAPI
|
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TerminalConInTimerHandler (
|
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IN EFI_EVENT Event,
|
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IN VOID *Context
|
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)
|
|
{
|
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EFI_STATUS Status;
|
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TERMINAL_DEV *TerminalDevice;
|
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UINT32 Control;
|
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UINT8 Input;
|
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EFI_SERIAL_IO_MODE *Mode;
|
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EFI_SERIAL_IO_PROTOCOL *SerialIo;
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UINTN SerialInTimeOut;
|
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|
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TerminalDevice = (TERMINAL_DEV *) Context;
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|
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SerialIo = TerminalDevice->SerialIo;
|
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if (SerialIo == NULL) {
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return ;
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}
|
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//
|
|
// if current timeout value for serial device is not identical with
|
|
// the value saved in TERMINAL_DEV structure, then recalculate the
|
|
// timeout value again and set serial attribute according to this value.
|
|
//
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Mode = SerialIo->Mode;
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if (Mode->Timeout != TerminalDevice->SerialInTimeOut) {
|
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SerialInTimeOut = 0;
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if (Mode->BaudRate != 0) {
|
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//
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// According to BAUD rate to calculate the timeout value.
|
|
//
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SerialInTimeOut = (1 + Mode->DataBits + Mode->StopBits) * 2 * 1000000 / (UINTN) Mode->BaudRate;
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}
|
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|
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Status = SerialIo->SetAttributes (
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SerialIo,
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Mode->BaudRate,
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Mode->ReceiveFifoDepth,
|
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(UINT32) SerialInTimeOut,
|
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(EFI_PARITY_TYPE) (Mode->Parity),
|
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(UINT8) Mode->DataBits,
|
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(EFI_STOP_BITS_TYPE) (Mode->StopBits)
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);
|
|
|
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if (EFI_ERROR(Status)) {
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TerminalDevice->SerialInTimeOut = 0;
|
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} else {
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TerminalDevice->SerialInTimeOut = SerialInTimeOut;
|
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}
|
|
}
|
|
//
|
|
// Check whether serial buffer is empty.
|
|
// Skip the key transfer loop only if the SerialIo protocol instance
|
|
// successfully reports EFI_SERIAL_INPUT_BUFFER_EMPTY.
|
|
//
|
|
Status = SerialIo->GetControl (SerialIo, &Control);
|
|
if (EFI_ERROR(Status) || ((Control & EFI_SERIAL_INPUT_BUFFER_EMPTY) == 0)) {
|
|
//
|
|
// Fetch all the keys in the serial buffer,
|
|
// and insert the byte stream into RawFIFO.
|
|
//
|
|
while (!IsRawFiFoFull (TerminalDevice)) {
|
|
|
|
Status = GetOneKeyFromSerial (TerminalDevice->SerialIo, &Input);
|
|
|
|
if (EFI_ERROR(Status)) {
|
|
if (Status == EFI_DEVICE_ERROR) {
|
|
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
|
|
EFI_ERROR_CODE | EFI_ERROR_MINOR,
|
|
(EFI_PERIPHERAL_REMOTE_CONSOLE | EFI_P_EC_INPUT_ERROR),
|
|
TerminalDevice->DevicePath
|
|
);
|
|
}
|
|
break;
|
|
}
|
|
|
|
RawFiFoInsertOneKey (TerminalDevice, Input);
|
|
}
|
|
}
|
|
|
|
//
|
|
// Translate all the raw data in RawFIFO into EFI Key,
|
|
// according to different terminal type supported.
|
|
//
|
|
TranslateRawDataToEfiKey (TerminalDevice);
|
|
}
|
|
|
|
/**
|
|
Process key notify.
|
|
|
|
@param Event Indicates the event that invoke this function.
|
|
@param Context Indicates the calling context.
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
KeyNotifyProcessHandler (
|
|
IN EFI_EVENT Event,
|
|
IN VOID *Context
|
|
)
|
|
{
|
|
BOOLEAN HasKey;
|
|
TERMINAL_DEV *TerminalDevice;
|
|
EFI_INPUT_KEY Key;
|
|
EFI_KEY_DATA KeyData;
|
|
LIST_ENTRY *Link;
|
|
LIST_ENTRY *NotifyList;
|
|
TERMINAL_CONSOLE_IN_EX_NOTIFY *CurrentNotify;
|
|
EFI_TPL OldTpl;
|
|
|
|
TerminalDevice = (TERMINAL_DEV *) Context;
|
|
|
|
//
|
|
// Invoke notification functions.
|
|
//
|
|
NotifyList = &TerminalDevice->NotifyList;
|
|
while (TRUE) {
|
|
//
|
|
// Enter critical section
|
|
//
|
|
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
|
|
HasKey = EfiKeyFiFoForNotifyRemoveOneKey (TerminalDevice->EfiKeyFiFoForNotify, &Key);
|
|
CopyMem(&KeyData.Key, &Key, sizeof (EFI_INPUT_KEY));
|
|
KeyData.KeyState.KeyShiftState = 0;
|
|
KeyData.KeyState.KeyToggleState = 0;
|
|
//
|
|
// Leave critical section
|
|
//
|
|
gBS->RestoreTPL (OldTpl);
|
|
if (!HasKey) {
|
|
break;
|
|
}
|
|
for (Link = GetFirstNode (NotifyList); !IsNull (NotifyList, Link); Link = GetNextNode (NotifyList, Link)) {
|
|
CurrentNotify = CR (Link, TERMINAL_CONSOLE_IN_EX_NOTIFY, NotifyEntry, TERMINAL_CONSOLE_IN_EX_NOTIFY_SIGNATURE);
|
|
if (IsKeyRegistered (&CurrentNotify->KeyData, &KeyData)) {
|
|
CurrentNotify->KeyNotificationFn (&KeyData);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
Get one key out of serial buffer.
|
|
|
|
@param SerialIo Serial I/O protocol attached to the serial device.
|
|
@param Output The fetched key.
|
|
|
|
@retval EFI_NOT_READY If serial buffer is empty.
|
|
@retval EFI_DEVICE_ERROR If reading serial buffer encounter error.
|
|
@retval EFI_SUCCESS If reading serial buffer successfully, put
|
|
the fetched key to the parameter output.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
GetOneKeyFromSerial (
|
|
EFI_SERIAL_IO_PROTOCOL *SerialIo,
|
|
UINT8 *Output
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
UINTN Size;
|
|
|
|
Size = 1;
|
|
*Output = 0;
|
|
|
|
//
|
|
// Read one key from serial I/O device.
|
|
//
|
|
Status = SerialIo->Read (SerialIo, &Size, Output);
|
|
|
|
if (EFI_ERROR(Status)) {
|
|
|
|
if (Status == EFI_TIMEOUT) {
|
|
return EFI_NOT_READY;
|
|
}
|
|
|
|
return EFI_DEVICE_ERROR;
|
|
|
|
}
|
|
|
|
if (*Output == 0) {
|
|
return EFI_NOT_READY;
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Insert one byte raw data into the Raw Data FIFO.
|
|
|
|
@param TerminalDevice Terminal driver private structure.
|
|
@param Input The key will be input.
|
|
|
|
@retval TRUE If insert successfully.
|
|
@retval FALSE If Raw Data buffer is full before key insertion,
|
|
and the key is lost.
|
|
|
|
**/
|
|
BOOLEAN
|
|
RawFiFoInsertOneKey (
|
|
TERMINAL_DEV *TerminalDevice,
|
|
UINT8 Input
|
|
)
|
|
{
|
|
UINT8 Tail;
|
|
|
|
Tail = TerminalDevice->RawFiFo->Tail;
|
|
|
|
if (IsRawFiFoFull (TerminalDevice)) {
|
|
//
|
|
// Raw FIFO is full
|
|
//
|
|
return FALSE;
|
|
}
|
|
|
|
TerminalDevice->RawFiFo->Data[Tail] = Input;
|
|
|
|
TerminalDevice->RawFiFo->Tail = (UINT8) ((Tail + 1) % (RAW_FIFO_MAX_NUMBER + 1));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
Remove one pre-fetched key out of the Raw Data FIFO.
|
|
|
|
@param TerminalDevice Terminal driver private structure.
|
|
@param Output The key will be removed.
|
|
|
|
@retval TRUE If insert successfully.
|
|
@retval FALSE If Raw Data FIFO buffer is empty before remove operation.
|
|
|
|
**/
|
|
BOOLEAN
|
|
RawFiFoRemoveOneKey (
|
|
TERMINAL_DEV *TerminalDevice,
|
|
UINT8 *Output
|
|
)
|
|
{
|
|
UINT8 Head;
|
|
|
|
Head = TerminalDevice->RawFiFo->Head;
|
|
|
|
if (IsRawFiFoEmpty (TerminalDevice)) {
|
|
//
|
|
// FIFO is empty
|
|
//
|
|
*Output = 0;
|
|
return FALSE;
|
|
}
|
|
|
|
*Output = TerminalDevice->RawFiFo->Data[Head];
|
|
|
|
TerminalDevice->RawFiFo->Head = (UINT8) ((Head + 1) % (RAW_FIFO_MAX_NUMBER + 1));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
Clarify whether Raw Data FIFO buffer is empty.
|
|
|
|
@param TerminalDevice Terminal driver private structure
|
|
|
|
@retval TRUE If Raw Data FIFO buffer is empty.
|
|
@retval FALSE If Raw Data FIFO buffer is not empty.
|
|
|
|
**/
|
|
BOOLEAN
|
|
IsRawFiFoEmpty (
|
|
TERMINAL_DEV *TerminalDevice
|
|
)
|
|
{
|
|
if (TerminalDevice->RawFiFo->Head == TerminalDevice->RawFiFo->Tail) {
|
|
return TRUE;
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
Clarify whether Raw Data FIFO buffer is full.
|
|
|
|
@param TerminalDevice Terminal driver private structure
|
|
|
|
@retval TRUE If Raw Data FIFO buffer is full.
|
|
@retval FALSE If Raw Data FIFO buffer is not full.
|
|
|
|
**/
|
|
BOOLEAN
|
|
IsRawFiFoFull (
|
|
TERMINAL_DEV *TerminalDevice
|
|
)
|
|
{
|
|
UINT8 Tail;
|
|
UINT8 Head;
|
|
|
|
Tail = TerminalDevice->RawFiFo->Tail;
|
|
Head = TerminalDevice->RawFiFo->Head;
|
|
|
|
if (((Tail + 1) % (RAW_FIFO_MAX_NUMBER + 1)) == Head) {
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
Insert one pre-fetched key into the FIFO buffer.
|
|
|
|
@param EfiKeyFiFo Pointer to instance of EFI_KEY_FIFO.
|
|
@param Input The key will be input.
|
|
|
|
@retval TRUE If insert successfully.
|
|
@retval FALSE If FIFO buffer is full before key insertion,
|
|
and the key is lost.
|
|
|
|
**/
|
|
BOOLEAN
|
|
EfiKeyFiFoForNotifyInsertOneKey (
|
|
EFI_KEY_FIFO *EfiKeyFiFo,
|
|
EFI_INPUT_KEY *Input
|
|
)
|
|
{
|
|
UINT8 Tail;
|
|
|
|
Tail = EfiKeyFiFo->Tail;
|
|
|
|
if (IsEfiKeyFiFoForNotifyFull (EfiKeyFiFo)) {
|
|
//
|
|
// FIFO is full
|
|
//
|
|
return FALSE;
|
|
}
|
|
|
|
CopyMem(&EfiKeyFiFo->Data[Tail], Input, sizeof (EFI_INPUT_KEY));
|
|
|
|
EfiKeyFiFo->Tail = (UINT8) ((Tail + 1) % (FIFO_MAX_NUMBER + 1));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
Remove one pre-fetched key out of the FIFO buffer.
|
|
|
|
@param EfiKeyFiFo Pointer to instance of EFI_KEY_FIFO.
|
|
@param Output The key will be removed.
|
|
|
|
@retval TRUE If remove successfully.
|
|
@retval FALSE If FIFO buffer is empty before remove operation.
|
|
|
|
**/
|
|
BOOLEAN
|
|
EfiKeyFiFoForNotifyRemoveOneKey (
|
|
EFI_KEY_FIFO *EfiKeyFiFo,
|
|
EFI_INPUT_KEY *Output
|
|
)
|
|
{
|
|
UINT8 Head;
|
|
|
|
Head = EfiKeyFiFo->Head;
|
|
ASSERT (Head < FIFO_MAX_NUMBER + 1);
|
|
|
|
if (IsEfiKeyFiFoForNotifyEmpty (EfiKeyFiFo)) {
|
|
//
|
|
// FIFO is empty
|
|
//
|
|
Output->ScanCode = SCAN_NULL;
|
|
Output->UnicodeChar = 0;
|
|
return FALSE;
|
|
}
|
|
|
|
CopyMem(Output, &EfiKeyFiFo->Data[Head], sizeof (EFI_INPUT_KEY));
|
|
|
|
EfiKeyFiFo->Head = (UINT8) ((Head + 1) % (FIFO_MAX_NUMBER + 1));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
Clarify whether FIFO buffer is empty.
|
|
|
|
@param EfiKeyFiFo Pointer to instance of EFI_KEY_FIFO.
|
|
|
|
@retval TRUE If FIFO buffer is empty.
|
|
@retval FALSE If FIFO buffer is not empty.
|
|
|
|
**/
|
|
BOOLEAN
|
|
IsEfiKeyFiFoForNotifyEmpty (
|
|
EFI_KEY_FIFO *EfiKeyFiFo
|
|
)
|
|
{
|
|
if (EfiKeyFiFo->Head == EfiKeyFiFo->Tail) {
|
|
return TRUE;
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
Clarify whether FIFO buffer is full.
|
|
|
|
@param EfiKeyFiFo Pointer to instance of EFI_KEY_FIFO.
|
|
|
|
@retval TRUE If FIFO buffer is full.
|
|
@retval FALSE If FIFO buffer is not full.
|
|
|
|
**/
|
|
BOOLEAN
|
|
IsEfiKeyFiFoForNotifyFull (
|
|
EFI_KEY_FIFO *EfiKeyFiFo
|
|
)
|
|
{
|
|
UINT8 Tail;
|
|
UINT8 Head;
|
|
|
|
Tail = EfiKeyFiFo->Tail;
|
|
Head = EfiKeyFiFo->Head;
|
|
|
|
if (((Tail + 1) % (FIFO_MAX_NUMBER + 1)) == Head) {
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
Insert one pre-fetched key into the FIFO buffer.
|
|
|
|
@param TerminalDevice Terminal driver private structure.
|
|
@param Key The key will be input.
|
|
|
|
@retval TRUE If insert successfully.
|
|
@retval FALSE If FIFO buffer is full before key insertion,
|
|
and the key is lost.
|
|
|
|
**/
|
|
BOOLEAN
|
|
EfiKeyFiFoInsertOneKey (
|
|
TERMINAL_DEV *TerminalDevice,
|
|
EFI_INPUT_KEY *Key
|
|
)
|
|
{
|
|
UINT8 Tail;
|
|
LIST_ENTRY *Link;
|
|
LIST_ENTRY *NotifyList;
|
|
TERMINAL_CONSOLE_IN_EX_NOTIFY *CurrentNotify;
|
|
EFI_KEY_DATA KeyData;
|
|
|
|
Tail = TerminalDevice->EfiKeyFiFo->Tail;
|
|
|
|
CopyMem(&KeyData.Key, Key, sizeof (EFI_INPUT_KEY));
|
|
KeyData.KeyState.KeyShiftState = 0;
|
|
KeyData.KeyState.KeyToggleState = 0;
|
|
|
|
//
|
|
// Signal KeyNotify process event if this key pressed matches any key registered.
|
|
//
|
|
NotifyList = &TerminalDevice->NotifyList;
|
|
for (Link = GetFirstNode (NotifyList); !IsNull (NotifyList,Link); Link = GetNextNode (NotifyList,Link)) {
|
|
CurrentNotify = CR (
|
|
Link,
|
|
TERMINAL_CONSOLE_IN_EX_NOTIFY,
|
|
NotifyEntry,
|
|
TERMINAL_CONSOLE_IN_EX_NOTIFY_SIGNATURE
|
|
);
|
|
if (IsKeyRegistered (&CurrentNotify->KeyData, &KeyData)) {
|
|
//
|
|
// The key notification function needs to run at TPL_CALLBACK
|
|
// while current TPL is TPL_NOTIFY. It will be invoked in
|
|
// KeyNotifyProcessHandler() which runs at TPL_CALLBACK.
|
|
//
|
|
EfiKeyFiFoForNotifyInsertOneKey (TerminalDevice->EfiKeyFiFoForNotify, Key);
|
|
gBS->SignalEvent (TerminalDevice->KeyNotifyProcessEvent);
|
|
break;
|
|
}
|
|
}
|
|
if (IsEfiKeyFiFoFull (TerminalDevice)) {
|
|
//
|
|
// Efi Key FIFO is full
|
|
//
|
|
return FALSE;
|
|
}
|
|
|
|
CopyMem(&TerminalDevice->EfiKeyFiFo->Data[Tail], Key, sizeof (EFI_INPUT_KEY));
|
|
|
|
TerminalDevice->EfiKeyFiFo->Tail = (UINT8) ((Tail + 1) % (FIFO_MAX_NUMBER + 1));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
Remove one pre-fetched key out of the FIFO buffer.
|
|
|
|
@param TerminalDevice Terminal driver private structure.
|
|
@param Output The key will be removed.
|
|
|
|
@retval TRUE If insert successfully.
|
|
@retval FALSE If FIFO buffer is empty before remove operation.
|
|
|
|
**/
|
|
BOOLEAN
|
|
EfiKeyFiFoRemoveOneKey (
|
|
TERMINAL_DEV *TerminalDevice,
|
|
EFI_INPUT_KEY *Output
|
|
)
|
|
{
|
|
UINT8 Head;
|
|
|
|
Head = TerminalDevice->EfiKeyFiFo->Head;
|
|
ASSERT (Head < FIFO_MAX_NUMBER + 1);
|
|
|
|
if (IsEfiKeyFiFoEmpty (TerminalDevice)) {
|
|
//
|
|
// FIFO is empty
|
|
//
|
|
Output->ScanCode = SCAN_NULL;
|
|
Output->UnicodeChar = 0;
|
|
return FALSE;
|
|
}
|
|
|
|
CopyMem(Output, &TerminalDevice->EfiKeyFiFo->Data[Head], sizeof (EFI_INPUT_KEY));
|
|
|
|
TerminalDevice->EfiKeyFiFo->Head = (UINT8) ((Head + 1) % (FIFO_MAX_NUMBER + 1));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
Clarify whether FIFO buffer is empty.
|
|
|
|
@param TerminalDevice Terminal driver private structure
|
|
|
|
@retval TRUE If FIFO buffer is empty.
|
|
@retval FALSE If FIFO buffer is not empty.
|
|
|
|
**/
|
|
BOOLEAN
|
|
IsEfiKeyFiFoEmpty (
|
|
TERMINAL_DEV *TerminalDevice
|
|
)
|
|
{
|
|
if (TerminalDevice->EfiKeyFiFo->Head == TerminalDevice->EfiKeyFiFo->Tail) {
|
|
return TRUE;
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
Clarify whether FIFO buffer is full.
|
|
|
|
@param TerminalDevice Terminal driver private structure
|
|
|
|
@retval TRUE If FIFO buffer is full.
|
|
@retval FALSE If FIFO buffer is not full.
|
|
|
|
**/
|
|
BOOLEAN
|
|
IsEfiKeyFiFoFull (
|
|
TERMINAL_DEV *TerminalDevice
|
|
)
|
|
{
|
|
UINT8 Tail;
|
|
UINT8 Head;
|
|
|
|
Tail = TerminalDevice->EfiKeyFiFo->Tail;
|
|
Head = TerminalDevice->EfiKeyFiFo->Head;
|
|
|
|
if (((Tail + 1) % (FIFO_MAX_NUMBER + 1)) == Head) {
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
Insert one pre-fetched key into the Unicode FIFO buffer.
|
|
|
|
@param TerminalDevice Terminal driver private structure.
|
|
@param Input The key will be input.
|
|
|
|
@retval TRUE If insert successfully.
|
|
@retval FALSE If Unicode FIFO buffer is full before key insertion,
|
|
and the key is lost.
|
|
|
|
**/
|
|
BOOLEAN
|
|
UnicodeFiFoInsertOneKey (
|
|
TERMINAL_DEV *TerminalDevice,
|
|
UINT16 Input
|
|
)
|
|
{
|
|
UINT8 Tail;
|
|
|
|
Tail = TerminalDevice->UnicodeFiFo->Tail;
|
|
ASSERT (Tail < FIFO_MAX_NUMBER + 1);
|
|
|
|
|
|
if (IsUnicodeFiFoFull (TerminalDevice)) {
|
|
//
|
|
// Unicode FIFO is full
|
|
//
|
|
return FALSE;
|
|
}
|
|
|
|
TerminalDevice->UnicodeFiFo->Data[Tail] = Input;
|
|
|
|
TerminalDevice->UnicodeFiFo->Tail = (UINT8) ((Tail + 1) % (FIFO_MAX_NUMBER + 1));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
Remove one pre-fetched key out of the Unicode FIFO buffer.
|
|
The caller should guarantee that Unicode FIFO buffer is not empty
|
|
by IsUnicodeFiFoEmpty ().
|
|
|
|
@param TerminalDevice Terminal driver private structure.
|
|
@param Output The key will be removed.
|
|
|
|
**/
|
|
VOID
|
|
UnicodeFiFoRemoveOneKey (
|
|
TERMINAL_DEV *TerminalDevice,
|
|
UINT16 *Output
|
|
)
|
|
{
|
|
UINT8 Head;
|
|
|
|
Head = TerminalDevice->UnicodeFiFo->Head;
|
|
ASSERT (Head < FIFO_MAX_NUMBER + 1);
|
|
|
|
*Output = TerminalDevice->UnicodeFiFo->Data[Head];
|
|
|
|
TerminalDevice->UnicodeFiFo->Head = (UINT8) ((Head + 1) % (FIFO_MAX_NUMBER + 1));
|
|
}
|
|
|
|
/**
|
|
Clarify whether Unicode FIFO buffer is empty.
|
|
|
|
@param TerminalDevice Terminal driver private structure
|
|
|
|
@retval TRUE If Unicode FIFO buffer is empty.
|
|
@retval FALSE If Unicode FIFO buffer is not empty.
|
|
|
|
**/
|
|
BOOLEAN
|
|
IsUnicodeFiFoEmpty (
|
|
TERMINAL_DEV *TerminalDevice
|
|
)
|
|
{
|
|
if (TerminalDevice->UnicodeFiFo->Head == TerminalDevice->UnicodeFiFo->Tail) {
|
|
return TRUE;
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
Clarify whether Unicode FIFO buffer is full.
|
|
|
|
@param TerminalDevice Terminal driver private structure
|
|
|
|
@retval TRUE If Unicode FIFO buffer is full.
|
|
@retval FALSE If Unicode FIFO buffer is not full.
|
|
|
|
**/
|
|
BOOLEAN
|
|
IsUnicodeFiFoFull (
|
|
TERMINAL_DEV *TerminalDevice
|
|
)
|
|
{
|
|
UINT8 Tail;
|
|
UINT8 Head;
|
|
|
|
Tail = TerminalDevice->UnicodeFiFo->Tail;
|
|
Head = TerminalDevice->UnicodeFiFo->Head;
|
|
|
|
if (((Tail + 1) % (FIFO_MAX_NUMBER + 1)) == Head) {
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/**
|
|
Update the Unicode characters from a terminal input device into EFI Keys FIFO.
|
|
|
|
@param TerminalDevice The terminal device to use to translate raw input into EFI Keys
|
|
|
|
**/
|
|
VOID
|
|
UnicodeToEfiKeyFlushState (
|
|
IN TERMINAL_DEV *TerminalDevice
|
|
)
|
|
{
|
|
EFI_INPUT_KEY Key;
|
|
UINT32 InputState;
|
|
|
|
InputState = TerminalDevice->InputState;
|
|
|
|
if (IsEfiKeyFiFoFull (TerminalDevice)) {
|
|
return;
|
|
}
|
|
|
|
if ((InputState & INPUT_STATE_ESC) != 0) {
|
|
Key.ScanCode = SCAN_ESC;
|
|
Key.UnicodeChar = 0;
|
|
EfiKeyFiFoInsertOneKey (TerminalDevice, &Key);
|
|
}
|
|
|
|
if ((InputState & INPUT_STATE_CSI) != 0) {
|
|
Key.ScanCode = SCAN_NULL;
|
|
Key.UnicodeChar = CSI;
|
|
EfiKeyFiFoInsertOneKey (TerminalDevice, &Key);
|
|
}
|
|
|
|
if ((InputState & INPUT_STATE_LEFTOPENBRACKET) != 0) {
|
|
Key.ScanCode = SCAN_NULL;
|
|
Key.UnicodeChar = LEFTOPENBRACKET;
|
|
EfiKeyFiFoInsertOneKey (TerminalDevice, &Key);
|
|
}
|
|
|
|
if ((InputState & INPUT_STATE_O) != 0) {
|
|
Key.ScanCode = SCAN_NULL;
|
|
Key.UnicodeChar = 'O';
|
|
EfiKeyFiFoInsertOneKey (TerminalDevice, &Key);
|
|
}
|
|
|
|
if ((InputState & INPUT_STATE_2) != 0) {
|
|
Key.ScanCode = SCAN_NULL;
|
|
Key.UnicodeChar = '2';
|
|
EfiKeyFiFoInsertOneKey (TerminalDevice, &Key);
|
|
}
|
|
|
|
//
|
|
// Cancel the timer.
|
|
//
|
|
gBS->SetTimer (
|
|
TerminalDevice->TwoSecondTimeOut,
|
|
TimerCancel,
|
|
0
|
|
);
|
|
|
|
TerminalDevice->InputState = INPUT_STATE_DEFAULT;
|
|
}
|
|
|
|
|
|
/**
|
|
Converts a stream of Unicode characters from a terminal input device into EFI Keys that
|
|
can be read through the Simple Input Protocol.
|
|
|
|
The table below shows the keyboard input mappings that this function supports.
|
|
If the ESC sequence listed in one of the columns is presented, then it is translated
|
|
into the corresponding EFI Scan Code. If a matching sequence is not found, then the raw
|
|
key strokes are converted into EFI Keys.
|
|
|
|
2 seconds are allowed for an ESC sequence to be completed. If the ESC sequence is not
|
|
completed in 2 seconds, then the raw key strokes of the partial ESC sequence are
|
|
converted into EFI Keys.
|
|
There is one special input sequence that will force the system to reset.
|
|
This is ESC R ESC r ESC R.
|
|
|
|
Note: current implementation support terminal types include: PC ANSI, VT100+/VTUTF8, VT100.
|
|
The table below is not same with UEFI Spec 2.3 Appendix B Table 201(not support ANSI X3.64 /
|
|
DEC VT200-500 and extra support PC ANSI, VT100)since UEFI Table 201 is just an example.
|
|
|
|
Symbols used in table below
|
|
===========================
|
|
ESC = 0x1B
|
|
CSI = 0x9B
|
|
DEL = 0x7f
|
|
^ = CTRL
|
|
|
|
+=========+======+===========+==========+==========+
|
|
| | EFI | UEFI 2.0 | | |
|
|
| | Scan | | VT100+ | |
|
|
| KEY | Code | PC ANSI | VTUTF8 | VT100 |
|
|
+=========+======+===========+==========+==========+
|
|
| NULL | 0x00 | | | |
|
|
| UP | 0x01 | ESC [ A | ESC [ A | ESC [ A |
|
|
| DOWN | 0x02 | ESC [ B | ESC [ B | ESC [ B |
|
|
| RIGHT | 0x03 | ESC [ C | ESC [ C | ESC [ C |
|
|
| LEFT | 0x04 | ESC [ D | ESC [ D | ESC [ D |
|
|
| HOME | 0x05 | ESC [ H | ESC h | ESC [ H |
|
|
| END | 0x06 | ESC [ F | ESC k | ESC [ K |
|
|
| INSERT | 0x07 | ESC [ @ | ESC + | ESC [ @ |
|
|
| | | ESC [ L | | ESC [ L |
|
|
| DELETE | 0x08 | ESC [ X | ESC - | ESC [ P |
|
|
| PG UP | 0x09 | ESC [ I | ESC ? | ESC [ V |
|
|
| | | | | ESC [ ? |
|
|
| PG DOWN | 0x0A | ESC [ G | ESC / | ESC [ U |
|
|
| | | | | ESC [ / |
|
|
| F1 | 0x0B | ESC [ M | ESC 1 | ESC O P |
|
|
| F2 | 0x0C | ESC [ N | ESC 2 | ESC O Q |
|
|
| F3 | 0x0D | ESC [ O | ESC 3 | ESC O w |
|
|
| F4 | 0x0E | ESC [ P | ESC 4 | ESC O x |
|
|
| F5 | 0x0F | ESC [ Q | ESC 5 | ESC O t |
|
|
| F6 | 0x10 | ESC [ R | ESC 6 | ESC O u |
|
|
| F7 | 0x11 | ESC [ S | ESC 7 | ESC O q |
|
|
| F8 | 0x12 | ESC [ T | ESC 8 | ESC O r |
|
|
| F9 | 0x13 | ESC [ U | ESC 9 | ESC O p |
|
|
| F10 | 0x14 | ESC [ V | ESC 0 | ESC O M |
|
|
| Escape | 0x17 | ESC | ESC | ESC |
|
|
| F11 | 0x15 | | ESC ! | |
|
|
| F12 | 0x16 | | ESC @ | |
|
|
+=========+======+===========+==========+==========+
|
|
|
|
Special Mappings
|
|
================
|
|
ESC R ESC r ESC R = Reset System
|
|
|
|
@param TerminalDevice The terminal device to use to translate raw input into EFI Keys
|
|
|
|
**/
|
|
VOID
|
|
UnicodeToEfiKey (
|
|
IN TERMINAL_DEV *TerminalDevice
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
EFI_STATUS TimerStatus;
|
|
UINT16 UnicodeChar;
|
|
EFI_INPUT_KEY Key;
|
|
BOOLEAN SetDefaultResetState;
|
|
|
|
TimerStatus = gBS->CheckEvent (TerminalDevice->TwoSecondTimeOut);
|
|
|
|
if (!EFI_ERROR(TimerStatus)) {
|
|
UnicodeToEfiKeyFlushState (TerminalDevice);
|
|
TerminalDevice->ResetState = RESET_STATE_DEFAULT;
|
|
}
|
|
|
|
while (!IsUnicodeFiFoEmpty (TerminalDevice) && !IsEfiKeyFiFoFull (TerminalDevice)) {
|
|
|
|
if (TerminalDevice->InputState != INPUT_STATE_DEFAULT) {
|
|
//
|
|
// Check to see if the 2 seconds timer has expired
|
|
//
|
|
TimerStatus = gBS->CheckEvent (TerminalDevice->TwoSecondTimeOut);
|
|
if (!EFI_ERROR(TimerStatus)) {
|
|
UnicodeToEfiKeyFlushState (TerminalDevice);
|
|
TerminalDevice->ResetState = RESET_STATE_DEFAULT;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Fetch one Unicode character from the Unicode FIFO
|
|
//
|
|
UnicodeFiFoRemoveOneKey (TerminalDevice, &UnicodeChar);
|
|
|
|
SetDefaultResetState = TRUE;
|
|
|
|
switch (TerminalDevice->InputState) {
|
|
case INPUT_STATE_DEFAULT:
|
|
|
|
break;
|
|
|
|
case INPUT_STATE_ESC:
|
|
|
|
if (UnicodeChar == LEFTOPENBRACKET) {
|
|
TerminalDevice->InputState |= INPUT_STATE_LEFTOPENBRACKET;
|
|
TerminalDevice->ResetState = RESET_STATE_DEFAULT;
|
|
continue;
|
|
}
|
|
|
|
if (UnicodeChar == 'O' && (TerminalDevice->TerminalType == TerminalTypeVt100 ||
|
|
TerminalDevice->TerminalType == TerminalTypeTtyTerm)) {
|
|
TerminalDevice->InputState |= INPUT_STATE_O;
|
|
TerminalDevice->ResetState = RESET_STATE_DEFAULT;
|
|
continue;
|
|
}
|
|
|
|
Key.ScanCode = SCAN_NULL;
|
|
|
|
if (TerminalDevice->TerminalType == TerminalTypeVt100Plus ||
|
|
TerminalDevice->TerminalType == TerminalTypeVtUtf8) {
|
|
switch (UnicodeChar) {
|
|
case '1':
|
|
Key.ScanCode = SCAN_F1;
|
|
break;
|
|
case '2':
|
|
Key.ScanCode = SCAN_F2;
|
|
break;
|
|
case '3':
|
|
Key.ScanCode = SCAN_F3;
|
|
break;
|
|
case '4':
|
|
Key.ScanCode = SCAN_F4;
|
|
break;
|
|
case '5':
|
|
Key.ScanCode = SCAN_F5;
|
|
break;
|
|
case '6':
|
|
Key.ScanCode = SCAN_F6;
|
|
break;
|
|
case '7':
|
|
Key.ScanCode = SCAN_F7;
|
|
break;
|
|
case '8':
|
|
Key.ScanCode = SCAN_F8;
|
|
break;
|
|
case '9':
|
|
Key.ScanCode = SCAN_F9;
|
|
break;
|
|
case '0':
|
|
Key.ScanCode = SCAN_F10;
|
|
break;
|
|
case '!':
|
|
Key.ScanCode = SCAN_F11;
|
|
break;
|
|
case '@':
|
|
Key.ScanCode = SCAN_F12;
|
|
break;
|
|
case 'h':
|
|
Key.ScanCode = SCAN_HOME;
|
|
break;
|
|
case 'k':
|
|
Key.ScanCode = SCAN_END;
|
|
break;
|
|
case '+':
|
|
Key.ScanCode = SCAN_INSERT;
|
|
break;
|
|
case '-':
|
|
Key.ScanCode = SCAN_DELETE;
|
|
break;
|
|
case '/':
|
|
Key.ScanCode = SCAN_PAGE_DOWN;
|
|
break;
|
|
case '?':
|
|
Key.ScanCode = SCAN_PAGE_UP;
|
|
break;
|
|
default :
|
|
break;
|
|
}
|
|
}
|
|
|
|
switch (UnicodeChar) {
|
|
case 'R':
|
|
if (TerminalDevice->ResetState == RESET_STATE_DEFAULT) {
|
|
TerminalDevice->ResetState = RESET_STATE_ESC_R;
|
|
SetDefaultResetState = FALSE;
|
|
} else if (TerminalDevice->ResetState == RESET_STATE_ESC_R_ESC_R) {
|
|
gRT->ResetSystem (EfiResetWarm, EFI_SUCCESS, 0, NULL);
|
|
}
|
|
Key.ScanCode = SCAN_NULL;
|
|
break;
|
|
case 'r':
|
|
if (TerminalDevice->ResetState == RESET_STATE_ESC_R) {
|
|
TerminalDevice->ResetState = RESET_STATE_ESC_R_ESC_R;
|
|
SetDefaultResetState = FALSE;
|
|
}
|
|
Key.ScanCode = SCAN_NULL;
|
|
break;
|
|
default :
|
|
break;
|
|
}
|
|
|
|
if (SetDefaultResetState) {
|
|
TerminalDevice->ResetState = RESET_STATE_DEFAULT;
|
|
}
|
|
|
|
if (Key.ScanCode != SCAN_NULL) {
|
|
Key.UnicodeChar = 0;
|
|
EfiKeyFiFoInsertOneKey (TerminalDevice, &Key);
|
|
TerminalDevice->InputState = INPUT_STATE_DEFAULT;
|
|
UnicodeToEfiKeyFlushState (TerminalDevice);
|
|
continue;
|
|
}
|
|
|
|
UnicodeToEfiKeyFlushState (TerminalDevice);
|
|
|
|
break;
|
|
|
|
case INPUT_STATE_ESC | INPUT_STATE_O:
|
|
|
|
TerminalDevice->ResetState = RESET_STATE_DEFAULT;
|
|
|
|
Key.ScanCode = SCAN_NULL;
|
|
|
|
if (TerminalDevice->TerminalType == TerminalTypeVt100) {
|
|
switch (UnicodeChar) {
|
|
case 'P':
|
|
Key.ScanCode = SCAN_F1;
|
|
break;
|
|
case 'Q':
|
|
Key.ScanCode = SCAN_F2;
|
|
break;
|
|
case 'w':
|
|
Key.ScanCode = SCAN_F3;
|
|
break;
|
|
case 'x':
|
|
Key.ScanCode = SCAN_F4;
|
|
break;
|
|
case 't':
|
|
Key.ScanCode = SCAN_F5;
|
|
break;
|
|
case 'u':
|
|
Key.ScanCode = SCAN_F6;
|
|
break;
|
|
case 'q':
|
|
Key.ScanCode = SCAN_F7;
|
|
break;
|
|
case 'r':
|
|
Key.ScanCode = SCAN_F8;
|
|
break;
|
|
case 'p':
|
|
Key.ScanCode = SCAN_F9;
|
|
break;
|
|
case 'M':
|
|
Key.ScanCode = SCAN_F10;
|
|
break;
|
|
default :
|
|
break;
|
|
}
|
|
} else if (TerminalDevice->TerminalType == TerminalTypeTtyTerm) {
|
|
/* Also accept VT100 escape codes for F1-F4, HOME and END for TTY term */
|
|
switch (UnicodeChar) {
|
|
case 'P':
|
|
Key.ScanCode = SCAN_F1;
|
|
break;
|
|
case 'Q':
|
|
Key.ScanCode = SCAN_F2;
|
|
break;
|
|
case 'R':
|
|
Key.ScanCode = SCAN_F3;
|
|
break;
|
|
case 'S':
|
|
Key.ScanCode = SCAN_F4;
|
|
break;
|
|
case 'H':
|
|
Key.ScanCode = SCAN_HOME;
|
|
break;
|
|
case 'F':
|
|
Key.ScanCode = SCAN_END;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (Key.ScanCode != SCAN_NULL) {
|
|
Key.UnicodeChar = 0;
|
|
EfiKeyFiFoInsertOneKey (TerminalDevice, &Key);
|
|
TerminalDevice->InputState = INPUT_STATE_DEFAULT;
|
|
UnicodeToEfiKeyFlushState (TerminalDevice);
|
|
continue;
|
|
}
|
|
|
|
UnicodeToEfiKeyFlushState (TerminalDevice);
|
|
|
|
break;
|
|
|
|
case INPUT_STATE_ESC | INPUT_STATE_LEFTOPENBRACKET:
|
|
|
|
TerminalDevice->ResetState = RESET_STATE_DEFAULT;
|
|
|
|
Key.ScanCode = SCAN_NULL;
|
|
|
|
if (TerminalDevice->TerminalType == TerminalTypePcAnsi ||
|
|
TerminalDevice->TerminalType == TerminalTypeVt100 ||
|
|
TerminalDevice->TerminalType == TerminalTypeVt100Plus ||
|
|
TerminalDevice->TerminalType == TerminalTypeVtUtf8 ||
|
|
TerminalDevice->TerminalType == TerminalTypeTtyTerm) {
|
|
switch (UnicodeChar) {
|
|
case 'A':
|
|
Key.ScanCode = SCAN_UP;
|
|
break;
|
|
case 'B':
|
|
Key.ScanCode = SCAN_DOWN;
|
|
break;
|
|
case 'C':
|
|
Key.ScanCode = SCAN_RIGHT;
|
|
break;
|
|
case 'D':
|
|
Key.ScanCode = SCAN_LEFT;
|
|
break;
|
|
case 'H':
|
|
if (TerminalDevice->TerminalType == TerminalTypePcAnsi ||
|
|
TerminalDevice->TerminalType == TerminalTypeVt100 ||
|
|
TerminalDevice->TerminalType == TerminalTypeTtyTerm) {
|
|
Key.ScanCode = SCAN_HOME;
|
|
}
|
|
break;
|
|
case 'F':
|
|
if (TerminalDevice->TerminalType == TerminalTypePcAnsi ||
|
|
TerminalDevice->TerminalType == TerminalTypeTtyTerm) {
|
|
Key.ScanCode = SCAN_END;
|
|
}
|
|
break;
|
|
case 'K':
|
|
if (TerminalDevice->TerminalType == TerminalTypeVt100) {
|
|
Key.ScanCode = SCAN_END;
|
|
}
|
|
break;
|
|
case 'L':
|
|
case '@':
|
|
if (TerminalDevice->TerminalType == TerminalTypePcAnsi ||
|
|
TerminalDevice->TerminalType == TerminalTypeVt100) {
|
|
Key.ScanCode = SCAN_INSERT;
|
|
}
|
|
break;
|
|
case 'X':
|
|
if (TerminalDevice->TerminalType == TerminalTypePcAnsi) {
|
|
Key.ScanCode = SCAN_DELETE;
|
|
}
|
|
break;
|
|
case 'P':
|
|
if (TerminalDevice->TerminalType == TerminalTypeVt100) {
|
|
Key.ScanCode = SCAN_DELETE;
|
|
} else if (TerminalDevice->TerminalType == TerminalTypePcAnsi) {
|
|
Key.ScanCode = SCAN_F4;
|
|
}
|
|
break;
|
|
case 'I':
|
|
if (TerminalDevice->TerminalType == TerminalTypePcAnsi) {
|
|
Key.ScanCode = SCAN_PAGE_UP;
|
|
}
|
|
break;
|
|
case 'V':
|
|
if (TerminalDevice->TerminalType == TerminalTypePcAnsi) {
|
|
Key.ScanCode = SCAN_F10;
|
|
}
|
|
break;
|
|
case '?':
|
|
if (TerminalDevice->TerminalType == TerminalTypeVt100) {
|
|
Key.ScanCode = SCAN_PAGE_UP;
|
|
}
|
|
break;
|
|
case 'G':
|
|
if (TerminalDevice->TerminalType == TerminalTypePcAnsi) {
|
|
Key.ScanCode = SCAN_PAGE_DOWN;
|
|
}
|
|
break;
|
|
case 'U':
|
|
if (TerminalDevice->TerminalType == TerminalTypePcAnsi) {
|
|
Key.ScanCode = SCAN_F9;
|
|
}
|
|
break;
|
|
case '/':
|
|
if (TerminalDevice->TerminalType == TerminalTypeVt100) {
|
|
Key.ScanCode = SCAN_PAGE_DOWN;
|
|
}
|
|
break;
|
|
case 'M':
|
|
if (TerminalDevice->TerminalType == TerminalTypePcAnsi) {
|
|
Key.ScanCode = SCAN_F1;
|
|
}
|
|
break;
|
|
case 'N':
|
|
if (TerminalDevice->TerminalType == TerminalTypePcAnsi) {
|
|
Key.ScanCode = SCAN_F2;
|
|
}
|
|
break;
|
|
case 'O':
|
|
if (TerminalDevice->TerminalType == TerminalTypePcAnsi) {
|
|
Key.ScanCode = SCAN_F3;
|
|
}
|
|
break;
|
|
case 'Q':
|
|
if (TerminalDevice->TerminalType == TerminalTypePcAnsi) {
|
|
Key.ScanCode = SCAN_F5;
|
|
}
|
|
break;
|
|
case 'R':
|
|
if (TerminalDevice->TerminalType == TerminalTypePcAnsi) {
|
|
Key.ScanCode = SCAN_F6;
|
|
}
|
|
break;
|
|
case 'S':
|
|
if (TerminalDevice->TerminalType == TerminalTypePcAnsi) {
|
|
Key.ScanCode = SCAN_F7;
|
|
}
|
|
break;
|
|
case 'T':
|
|
if (TerminalDevice->TerminalType == TerminalTypePcAnsi) {
|
|
Key.ScanCode = SCAN_F8;
|
|
}
|
|
break;
|
|
default :
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* The VT220 escape codes that the TTY terminal accepts all have
|
|
* numeric codes, and there are no ambiguous prefixes shared with
|
|
* other terminal types.
|
|
*/
|
|
if (TerminalDevice->TerminalType == TerminalTypeTtyTerm &&
|
|
Key.ScanCode == SCAN_NULL &&
|
|
UnicodeChar >= '0' &&
|
|
UnicodeChar <= '9') {
|
|
TerminalDevice->TtyEscapeStr[0] = UnicodeChar;
|
|
TerminalDevice->TtyEscapeIndex = 1;
|
|
TerminalDevice->InputState |= INPUT_STATE_LEFTOPENBRACKET_2;
|
|
continue;
|
|
}
|
|
|
|
if (Key.ScanCode != SCAN_NULL) {
|
|
Key.UnicodeChar = 0;
|
|
EfiKeyFiFoInsertOneKey (TerminalDevice, &Key);
|
|
TerminalDevice->InputState = INPUT_STATE_DEFAULT;
|
|
UnicodeToEfiKeyFlushState (TerminalDevice);
|
|
continue;
|
|
}
|
|
|
|
UnicodeToEfiKeyFlushState (TerminalDevice);
|
|
|
|
break;
|
|
|
|
|
|
case INPUT_STATE_ESC | INPUT_STATE_LEFTOPENBRACKET | INPUT_STATE_LEFTOPENBRACKET_2:
|
|
/*
|
|
* Here we handle the VT220 escape codes that we accept. This
|
|
* state is only used by the TTY terminal type.
|
|
*/
|
|
Key.ScanCode = SCAN_NULL;
|
|
if (TerminalDevice->TerminalType == TerminalTypeTtyTerm) {
|
|
|
|
if (UnicodeChar == '~' && TerminalDevice->TtyEscapeIndex <= 2) {
|
|
UINT16 EscCode;
|
|
TerminalDevice->TtyEscapeStr[TerminalDevice->TtyEscapeIndex] = 0; /* Terminate string */
|
|
EscCode = (UINT16) StrDecimalToUintn(TerminalDevice->TtyEscapeStr);
|
|
switch (EscCode) {
|
|
case 2:
|
|
Key.ScanCode = SCAN_INSERT;
|
|
break;
|
|
case 3:
|
|
Key.ScanCode = SCAN_DELETE;
|
|
break;
|
|
case 5:
|
|
Key.ScanCode = SCAN_PAGE_UP;
|
|
break;
|
|
case 6:
|
|
Key.ScanCode = SCAN_PAGE_DOWN;
|
|
break;
|
|
case 11:
|
|
case 12:
|
|
case 13:
|
|
case 14:
|
|
case 15:
|
|
Key.ScanCode = SCAN_F1 + EscCode - 11;
|
|
break;
|
|
case 17:
|
|
case 18:
|
|
case 19:
|
|
case 20:
|
|
case 21:
|
|
Key.ScanCode = SCAN_F6 + EscCode - 17;
|
|
break;
|
|
case 23:
|
|
case 24:
|
|
Key.ScanCode = SCAN_F11 + EscCode - 23;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
} else if (TerminalDevice->TtyEscapeIndex == 1){
|
|
/* 2 character escape code */
|
|
TerminalDevice->TtyEscapeStr[TerminalDevice->TtyEscapeIndex++] = UnicodeChar;
|
|
continue;
|
|
}
|
|
else {
|
|
DEBUG ((EFI_D_ERROR, "Unexpected state in escape2\n"));
|
|
}
|
|
}
|
|
TerminalDevice->ResetState = RESET_STATE_DEFAULT;
|
|
|
|
if (Key.ScanCode != SCAN_NULL) {
|
|
Key.UnicodeChar = 0;
|
|
EfiKeyFiFoInsertOneKey (TerminalDevice, &Key);
|
|
TerminalDevice->InputState = INPUT_STATE_DEFAULT;
|
|
UnicodeToEfiKeyFlushState (TerminalDevice);
|
|
continue;
|
|
}
|
|
|
|
UnicodeToEfiKeyFlushState (TerminalDevice);
|
|
break;
|
|
|
|
default:
|
|
//
|
|
// Invalid state. This should never happen.
|
|
//
|
|
ASSERT (FALSE);
|
|
|
|
UnicodeToEfiKeyFlushState (TerminalDevice);
|
|
|
|
break;
|
|
}
|
|
|
|
if (UnicodeChar == ESC) {
|
|
TerminalDevice->InputState = INPUT_STATE_ESC;
|
|
}
|
|
|
|
if (UnicodeChar == CSI) {
|
|
TerminalDevice->InputState = INPUT_STATE_CSI;
|
|
}
|
|
|
|
if (TerminalDevice->InputState != INPUT_STATE_DEFAULT) {
|
|
Status = gBS->SetTimer(
|
|
TerminalDevice->TwoSecondTimeOut,
|
|
TimerRelative,
|
|
(UINT64)20000000
|
|
);
|
|
ASSERT_EFI_ERROR(Status);
|
|
continue;
|
|
}
|
|
|
|
if (SetDefaultResetState) {
|
|
TerminalDevice->ResetState = RESET_STATE_DEFAULT;
|
|
}
|
|
|
|
if (UnicodeChar == DEL) {
|
|
if (TerminalDevice->TerminalType == TerminalTypeTtyTerm) {
|
|
Key.ScanCode = SCAN_NULL;
|
|
Key.UnicodeChar = CHAR_BACKSPACE;
|
|
}
|
|
else {
|
|
Key.ScanCode = SCAN_DELETE;
|
|
Key.UnicodeChar = 0;
|
|
}
|
|
} else {
|
|
Key.ScanCode = SCAN_NULL;
|
|
Key.UnicodeChar = UnicodeChar;
|
|
}
|
|
|
|
EfiKeyFiFoInsertOneKey (TerminalDevice, &Key);
|
|
}
|
|
}
|