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Borgerson, Matthew A
2255bc10b0
This patch simplifies the GraphicsLib code and adds an abstraction layer for printing to a virtual "console," through the familier ConsoleWrite(buffer, len) style function call. ConsoleWrite can be configured to output to either the serial port, or the display framebuffer, or both. This primarily enables the command shell to be used with a display and keyboard. Signed-off-by: Borgerson, Matthew A <matthew.a.borgerson@intel.com>
58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/** @file
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Provide Console output library functions.
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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/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/BootloaderCommonLib.h>
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#include <Library/DebugLogBufferLib.h>
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#include <Guid/LoaderPlatformDataGuid.h>
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#include <Library/GraphicsLib.h>
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#include <Library/PrintLib.h>
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#include <Library/SerialPortLib.h>
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#include <Library/HobLib.h>
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#include <Library/ConsoleOutLib.h>
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/**
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Write data from buffer to the console.
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Writes NumberOfBytes data bytes from Buffer to the virtual console.
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If Buffer is NULL, then ASSERT().
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If NumberOfBytes is zero, then return 0.
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@param Buffer Pointer to the data buffer to be written.
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@param NumberOfBytes Number of bytes to write to the console.
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@retval >0 The number of bytes written to the console.
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**/
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UINTN
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EFIAPI
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ConsoleWrite (
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IN UINT8 *Buffer,
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IN UINTN NumberOfBytes
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)
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{
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if (PcdGet32 (PcdConsoleOutDeviceMask) & ConsoleOutSerialPort) {
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SerialPortWrite ((UINT8 *)Buffer, NumberOfBytes);
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}
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if (PcdGet32 (PcdConsoleOutDeviceMask) & ConsoleOutFrameBuffer) {
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FrameBufferWrite ((UINT8 *)Buffer, NumberOfBytes);
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}
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return NumberOfBytes;
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}
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