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Aiden Park
b6697f12a8
* Enable DebugAgentLib to support source level debug over serial By default, source level debug is NOT enabled. ENABLE_SOURCE_DEBUG needs to be set to 1 in BoardConfig.py of each Platforms. - self.ENABLE_SOURCE_DEBUG = 1 As an initial drop, there are some limitations on APL platform. - Stage1A does not include DebugAgentLib due to Stage1A size limitation(32KB). Further optimization is required. - DebugAgentLib supports ONLY POSTMEM debugging on APL currently. Refer to EDKII Debugging: - https://github.com/tianocore/tianocore.github.io/wiki/EDK-II-Debugging - https://github.com/tianocore/tianocore.github.io/wiki/SourceLevelDebugPkg Change-Id: Ia28c5470bc5755768f2b380cc1dabbcb8ee60f0d Signed-off-by: Aiden Park <aiden.park@intel.com> * Additional changes for DebugAgent - Adjust stage size depending on ENABLE_SOURCE_DEBUG Pcd value - Add PeCoffFindAndReportImageInfo - Fix debugger hang at Shell Change-Id: I11b41e5ad610fcb2999e9d43e5dd8f8899e8265a Signed-off-by: Aiden Park <aiden.park@intel.com> * Move PeCoffFindAndReportImageInfo() from LitePeCoffLib to DebugAgentLib Change-Id: I2c4ab4f9561dfd0536da1820048f0e5f2660e2ab Signed-off-by: Aiden Park <aiden.park@intel.com>
94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
/** @file
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Implementation for console input library
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Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <PiPei.h>
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#include <Library/UsbKbLib.h>
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#include <Library/SerialPortLib.h>
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#include <Library/ConsoleInLib.h>
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/**
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Poll a console to see if there is any data waiting to be read.
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@retval FALSE There is no data waiting to be read from the console.
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@retval TRUE Data is waiting to be read from the console.
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**/
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BOOLEAN
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EFIAPI
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ConsolePoll (
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VOID
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)
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{
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if (FeaturePcdGet (PcdSourceDebugEnabled) != TRUE) {
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if ((PcdGet32 (PcdConsoleInDeviceMask) & ConsoleInSerialPort) != 0) {
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if (SerialPortPoll ()) {
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return TRUE;
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}
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}
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}
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if ((PcdGet32 (PcdConsoleInDeviceMask) & ConsoleInUsbKeyboard) != 0) {
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if (KeyboardPoll ()) {
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return TRUE;
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}
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}
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return FALSE;
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}
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/**
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Read data from a console device into a buffer.
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@param Buffer Pointer to the data buffer to store the data read from the console device.
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@param NumberOfBytes Number of bytes to read from the console device.
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@retval 0 NumberOfBytes is 0.
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@retval >0 The number of bytes read from the console device.
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If this value is less than NumberOfBytes, then the read operation failed.
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**/
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UINTN
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EFIAPI
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ConsoleRead (
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OUT UINT8 *Buffer,
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IN UINTN NumberOfBytes
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)
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{
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volatile UINTN Count;
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UINTN ReadCount;
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Count = 0;
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while (Count < NumberOfBytes) {
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if ((PcdGet32 (PcdConsoleInDeviceMask) & ConsoleInSerialPort) != 0) {
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if (FeaturePcdGet (PcdSourceDebugEnabled) != TRUE) {
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if (SerialPortPoll ()) {
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ReadCount = SerialPortRead (Buffer, 1);
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Buffer += ReadCount;
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Count += ReadCount;
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}
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}
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}
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if ((PcdGet32 (PcdConsoleInDeviceMask) & ConsoleInUsbKeyboard) != 0) {
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if (KeyboardPoll () && (Count < NumberOfBytes)) {
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ReadCount = KeyboardRead (Buffer, 1);
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Buffer += ReadCount;
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Count += ReadCount;
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}
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}
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}
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return NumberOfBytes;
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}
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