mirror of https://github.com/acidanthera/audk.git
CorebootModulePkg/SerialDxe: Use PlatformHookLib
Copy the driver from MdeModulePkg/Universal/SerialDxe. Add PlatformHookLib to the Library section of the .inf file to adjust the PCDs for the UART. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-by: Prince Agyeman <prince.agyeman@intel.com>
This commit is contained in:
Leahy, Leroy P
Prince Agyeman
parent
7cac40ba83
commit
248c30bbd4
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## @file
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# Serial driver that layers on top of a Serial Port Library instance.
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#
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# Copyright (c) 2008 - 2015, 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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#
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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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#
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##
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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = SerialDxe
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MODULE_UNI_FILE = SerialDxe.uni
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FILE_GUID = D3987D4B-971A-435F-8CAF-4967EB627241
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MODULE_TYPE = DXE_DRIVER
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VERSION_STRING = 1.0
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ENTRY_POINT = SerialDxeInitialize
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[Sources.common]
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SerialIo.c
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[Packages]
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MdePkg/MdePkg.dec
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CorebootModulePkg/CorebootModulePkg.dec
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[LibraryClasses]
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UefiDriverEntryPoint
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UefiBootServicesTableLib
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DebugLib
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PcdLib
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PlatformHookLib
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SerialPortLib
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[Protocols]
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gEfiSerialIoProtocolGuid ## PRODUCES
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gEfiDevicePathProtocolGuid ## PRODUCES
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[Pcd]
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gEfiMdePkgTokenSpaceGuid.PcdUartDefaultBaudRate ## CONSUMES
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gEfiMdePkgTokenSpaceGuid.PcdUartDefaultDataBits ## CONSUMES
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gEfiMdePkgTokenSpaceGuid.PcdUartDefaultParity ## CONSUMES
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gEfiMdePkgTokenSpaceGuid.PcdUartDefaultStopBits ## CONSUMES
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[Depex]
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TRUE
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[UserExtensions.TianoCore."ExtraFiles"]
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SerialDxeExtra.uni
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// /** @file
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// Serial driver that layers on top of a Serial Port Library instance.
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//
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// Serial driver that layers on top of a Serial Port Library instance.
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//
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// Copyright (c) 2008 - 2015, Intel Corporation. All rights reserved.<BR>
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//
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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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// **/
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#string STR_MODULE_ABSTRACT #language en-US "Serial driver that layers on top of a Serial Port Library instance"
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#string STR_MODULE_DESCRIPTION #language en-US "Serial driver that layers on top of a Serial Port Library instance."
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@ -0,0 +1,19 @@
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// /** @file
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// SerialDxe Localized Strings and Content
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//
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// Copyright (c) 2008 - 2015, Intel Corporation. All rights reserved.<BR>
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//
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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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// **/
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#string STR_PROPERTIES_MODULE_NAME
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#language en-US
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"SerialDxe Driver"
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@ -0,0 +1,528 @@
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/** @file
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Serial driver that layers on top of a Serial Port Library instance.
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Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
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Copyright (c) 2013-2014, ARM Ltd. All rights reserved.<BR>
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Copyright (c) 2015, 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 <Library/UefiBootServicesTableLib.h>
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#include <Library/SerialPortLib.h>
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#include <Library/DebugLib.h>
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#include <Library/PcdLib.h>
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#include <Protocol/SerialIo.h>
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#include <Protocol/DevicePath.h>
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typedef struct {
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VENDOR_DEVICE_PATH Guid;
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UART_DEVICE_PATH Uart;
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EFI_DEVICE_PATH_PROTOCOL End;
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} SERIAL_DEVICE_PATH;
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/**
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Reset the serial device.
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@param This Protocol instance pointer.
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@retval EFI_SUCCESS The device was reset.
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@retval EFI_DEVICE_ERROR The serial device could not be reset.
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**/
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EFI_STATUS
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EFIAPI
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SerialReset (
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IN EFI_SERIAL_IO_PROTOCOL *This
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);
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/**
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Sets the baud rate, receive FIFO depth, transmit/receive time out, parity,
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data bits, and stop bits on a serial device.
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@param This Protocol instance pointer.
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@param BaudRate The requested baud rate. A BaudRate value of 0 will use the the
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device's default interface speed.
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@param ReceiveFifoDepth The requested depth of the FIFO on the receive side of the
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serial interface. A ReceiveFifoDepth value of 0 will use
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the device's default FIFO depth.
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@param Timeout The requested time out for a single character in microseconds.
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This timeout applies to both the transmit and receive side of the
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interface. A Timeout value of 0 will use the device's default time
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out value.
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@param Parity The type of parity to use on this serial device. A Parity value of
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DefaultParity will use the device's default parity value.
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@param DataBits The number of data bits to use on the serial device. A DataBits
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value of 0 will use the device's default data bit setting.
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@param StopBits The number of stop bits to use on this serial device. A StopBits
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value of DefaultStopBits will use the device's default number of
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stop bits.
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@retval EFI_SUCCESS The device was reset.
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@retval EFI_DEVICE_ERROR The serial device could not be reset.
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**/
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EFI_STATUS
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EFIAPI
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SerialSetAttributes (
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IN EFI_SERIAL_IO_PROTOCOL *This,
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IN UINT64 BaudRate,
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IN UINT32 ReceiveFifoDepth,
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IN UINT32 Timeout,
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IN EFI_PARITY_TYPE Parity,
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IN UINT8 DataBits,
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IN EFI_STOP_BITS_TYPE StopBits
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);
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/**
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Set the control bits on a serial device
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@param This Protocol instance pointer.
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@param Control Set the bits of Control that are settable.
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@retval EFI_SUCCESS The new control bits were set on the serial device.
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@retval EFI_UNSUPPORTED The serial device does not support this operation.
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@retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
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**/
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EFI_STATUS
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EFIAPI
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SerialSetControl (
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IN EFI_SERIAL_IO_PROTOCOL *This,
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IN UINT32 Control
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);
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/**
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Retrieves the status of the control bits on a serial device
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@param This Protocol instance pointer.
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@param Control A pointer to return the current Control signals from the serial device.
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@retval EFI_SUCCESS The control bits were read from the serial device.
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@retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
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**/
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EFI_STATUS
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EFIAPI
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SerialGetControl (
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IN EFI_SERIAL_IO_PROTOCOL *This,
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OUT UINT32 *Control
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);
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/**
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Writes data to a serial device.
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@param This Protocol instance pointer.
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@param BufferSize On input, the size of the Buffer. On output, the amount of
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data actually written.
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@param Buffer The buffer of data to write
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@retval EFI_SUCCESS The data was written.
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@retval EFI_DEVICE_ERROR The device reported an error.
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@retval EFI_TIMEOUT The data write was stopped due to a timeout.
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**/
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EFI_STATUS
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EFIAPI
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SerialWrite (
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IN EFI_SERIAL_IO_PROTOCOL *This,
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IN OUT UINTN *BufferSize,
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IN VOID *Buffer
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);
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/**
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Reads data from a serial device.
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@param This Protocol instance pointer.
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@param BufferSize On input, the size of the Buffer. On output, the amount of
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data returned in Buffer.
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@param Buffer The buffer to return the data into.
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@retval EFI_SUCCESS The data was read.
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@retval EFI_DEVICE_ERROR The device reported an error.
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@retval EFI_TIMEOUT The data write was stopped due to a timeout.
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**/
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EFI_STATUS
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EFIAPI
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SerialRead (
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IN EFI_SERIAL_IO_PROTOCOL *This,
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IN OUT UINTN *BufferSize,
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OUT VOID *Buffer
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);
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EFI_HANDLE mSerialHandle = NULL;
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SERIAL_DEVICE_PATH mSerialDevicePath = {
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{
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{ HARDWARE_DEVICE_PATH, HW_VENDOR_DP, { sizeof (VENDOR_DEVICE_PATH), 0} },
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EFI_CALLER_ID_GUID // Use the driver's GUID
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},
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{
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{ MESSAGING_DEVICE_PATH, MSG_UART_DP, { sizeof (UART_DEVICE_PATH), 0} },
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0, // Reserved
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0, // BaudRate
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0, // DataBits
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0, // Parity
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0 // StopBits
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},
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{ END_DEVICE_PATH_TYPE, END_ENTIRE_DEVICE_PATH_SUBTYPE, { sizeof (EFI_DEVICE_PATH_PROTOCOL), 0 } }
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};
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//
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// Template used to initialize the Serial IO protocols.
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//
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EFI_SERIAL_IO_MODE mSerialIoMode = {
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//
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// value field set in SerialDxeInitialize()?
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//--------- ------------------- -----------------------------
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0, // ControlMask
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1000 * 1000, // Timeout
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0, // BaudRate yes
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1, // ReceiveFifoDepth
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0, // DataBits yes
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0, // Parity yes
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0 // StopBits yes
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};
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EFI_SERIAL_IO_PROTOCOL mSerialIoTemplate = {
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SERIAL_IO_INTERFACE_REVISION,
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SerialReset,
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SerialSetAttributes,
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SerialSetControl,
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SerialGetControl,
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SerialWrite,
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SerialRead,
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&mSerialIoMode
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};
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/**
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Reset the serial device.
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@param This Protocol instance pointer.
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@retval EFI_SUCCESS The device was reset.
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@retval EFI_DEVICE_ERROR The serial device could not be reset.
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|
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**/
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EFI_STATUS
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EFIAPI
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|
SerialReset (
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IN EFI_SERIAL_IO_PROTOCOL *This
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|
)
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|
{
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|
EFI_STATUS Status;
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EFI_TPL Tpl;
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|
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Status = SerialPortInitialize ();
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|
if (EFI_ERROR (Status)) {
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|
return Status;
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|
}
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|
|
||||||
|
//
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||||||
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// Set the Serial I/O mode and update the device path
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|
//
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|
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Tpl = gBS->RaiseTPL (TPL_NOTIFY);
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|
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//
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// Set the Serial I/O mode
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//
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|
This->Mode->ReceiveFifoDepth = 1;
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This->Mode->Timeout = 1000 * 1000;
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|
This->Mode->BaudRate = PcdGet64 (PcdUartDefaultBaudRate);
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|
This->Mode->DataBits = (UINT32) PcdGet8 (PcdUartDefaultDataBits);
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This->Mode->Parity = (UINT32) PcdGet8 (PcdUartDefaultParity);
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This->Mode->StopBits = (UINT32) PcdGet8 (PcdUartDefaultStopBits);
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|
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|
//
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// Check if the device path has actually changed
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||||||
|
//
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||||||
|
if (mSerialDevicePath.Uart.BaudRate == This->Mode->BaudRate &&
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mSerialDevicePath.Uart.DataBits == (UINT8) This->Mode->DataBits &&
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mSerialDevicePath.Uart.Parity == (UINT8) This->Mode->Parity &&
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|
mSerialDevicePath.Uart.StopBits == (UINT8) This->Mode->StopBits
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|
) {
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||||||
|
gBS->RestoreTPL (Tpl);
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|
return EFI_SUCCESS;
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||||||
|
}
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|
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|
//
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// Update the device path
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//
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mSerialDevicePath.Uart.BaudRate = This->Mode->BaudRate;
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mSerialDevicePath.Uart.DataBits = (UINT8) This->Mode->DataBits;
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|
mSerialDevicePath.Uart.Parity = (UINT8) This->Mode->Parity;
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|
mSerialDevicePath.Uart.StopBits = (UINT8) This->Mode->StopBits;
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|
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|
Status = gBS->ReinstallProtocolInterface (
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|
mSerialHandle,
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|
&gEfiDevicePathProtocolGuid,
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||||||
|
&mSerialDevicePath,
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||||||
|
&mSerialDevicePath
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||||||
|
);
|
||||||
|
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||||||
|
gBS->RestoreTPL (Tpl);
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||||||
|
|
||||||
|
return Status;
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||||||
|
}
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||||||
|
|
||||||
|
/**
|
||||||
|
Sets the baud rate, receive FIFO depth, transmit/receive time out, parity,
|
||||||
|
data bits, and stop bits on a serial device.
|
||||||
|
|
||||||
|
@param This Protocol instance pointer.
|
||||||
|
@param BaudRate The requested baud rate. A BaudRate value of 0 will use the the
|
||||||
|
device's default interface speed.
|
||||||
|
@param ReceiveFifoDepth The requested depth of the FIFO on the receive side of the
|
||||||
|
serial interface. A ReceiveFifoDepth value of 0 will use
|
||||||
|
the device's default FIFO depth.
|
||||||
|
@param Timeout The requested time out for a single character in microseconds.
|
||||||
|
This timeout applies to both the transmit and receive side of the
|
||||||
|
interface. A Timeout value of 0 will use the device's default time
|
||||||
|
out value.
|
||||||
|
@param Parity The type of parity to use on this serial device. A Parity value of
|
||||||
|
DefaultParity will use the device's default parity value.
|
||||||
|
@param DataBits The number of data bits to use on the serial device. A DataBits
|
||||||
|
value of 0 will use the device's default data bit setting.
|
||||||
|
@param StopBits The number of stop bits to use on this serial device. A StopBits
|
||||||
|
value of DefaultStopBits will use the device's default number of
|
||||||
|
stop bits.
|
||||||
|
|
||||||
|
@retval EFI_SUCCESS The device was reset.
|
||||||
|
@retval EFI_DEVICE_ERROR The serial device could not be reset.
|
||||||
|
|
||||||
|
**/
|
||||||
|
EFI_STATUS
|
||||||
|
EFIAPI
|
||||||
|
SerialSetAttributes (
|
||||||
|
IN EFI_SERIAL_IO_PROTOCOL *This,
|
||||||
|
IN UINT64 BaudRate,
|
||||||
|
IN UINT32 ReceiveFifoDepth,
|
||||||
|
IN UINT32 Timeout,
|
||||||
|
IN EFI_PARITY_TYPE Parity,
|
||||||
|
IN UINT8 DataBits,
|
||||||
|
IN EFI_STOP_BITS_TYPE StopBits
|
||||||
|
)
|
||||||
|
{
|
||||||
|
EFI_STATUS Status;
|
||||||
|
EFI_TPL Tpl;
|
||||||
|
|
||||||
|
Status = SerialPortSetAttributes (&BaudRate, &ReceiveFifoDepth, &Timeout, &Parity, &DataBits, &StopBits);
|
||||||
|
if (EFI_ERROR (Status)) {
|
||||||
|
return Status;
|
||||||
|
}
|
||||||
|
|
||||||
|
//
|
||||||
|
// Set the Serial I/O mode and update the device path
|
||||||
|
//
|
||||||
|
|
||||||
|
Tpl = gBS->RaiseTPL (TPL_NOTIFY);
|
||||||
|
|
||||||
|
//
|
||||||
|
// Set the Serial I/O mode
|
||||||
|
//
|
||||||
|
This->Mode->ReceiveFifoDepth = ReceiveFifoDepth;
|
||||||
|
This->Mode->Timeout = Timeout;
|
||||||
|
This->Mode->BaudRate = BaudRate;
|
||||||
|
This->Mode->DataBits = (UINT32) DataBits;
|
||||||
|
This->Mode->Parity = (UINT32) Parity;
|
||||||
|
This->Mode->StopBits = (UINT32) StopBits;
|
||||||
|
|
||||||
|
//
|
||||||
|
// Check if the device path has actually changed
|
||||||
|
//
|
||||||
|
if (mSerialDevicePath.Uart.BaudRate == BaudRate &&
|
||||||
|
mSerialDevicePath.Uart.DataBits == DataBits &&
|
||||||
|
mSerialDevicePath.Uart.Parity == (UINT8) Parity &&
|
||||||
|
mSerialDevicePath.Uart.StopBits == (UINT8) StopBits
|
||||||
|
) {
|
||||||
|
gBS->RestoreTPL (Tpl);
|
||||||
|
return EFI_SUCCESS;
|
||||||
|
}
|
||||||
|
|
||||||
|
//
|
||||||
|
// Update the device path
|
||||||
|
//
|
||||||
|
mSerialDevicePath.Uart.BaudRate = BaudRate;
|
||||||
|
mSerialDevicePath.Uart.DataBits = DataBits;
|
||||||
|
mSerialDevicePath.Uart.Parity = (UINT8) Parity;
|
||||||
|
mSerialDevicePath.Uart.StopBits = (UINT8) StopBits;
|
||||||
|
|
||||||
|
Status = gBS->ReinstallProtocolInterface (
|
||||||
|
mSerialHandle,
|
||||||
|
&gEfiDevicePathProtocolGuid,
|
||||||
|
&mSerialDevicePath,
|
||||||
|
&mSerialDevicePath
|
||||||
|
);
|
||||||
|
|
||||||
|
gBS->RestoreTPL (Tpl);
|
||||||
|
|
||||||
|
return Status;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
Set the control bits on a serial device
|
||||||
|
|
||||||
|
@param This Protocol instance pointer.
|
||||||
|
@param Control Set the bits of Control that are settable.
|
||||||
|
|
||||||
|
@retval EFI_SUCCESS The new control bits were set on the serial device.
|
||||||
|
@retval EFI_UNSUPPORTED The serial device does not support this operation.
|
||||||
|
@retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
|
||||||
|
|
||||||
|
**/
|
||||||
|
EFI_STATUS
|
||||||
|
EFIAPI
|
||||||
|
SerialSetControl (
|
||||||
|
IN EFI_SERIAL_IO_PROTOCOL *This,
|
||||||
|
IN UINT32 Control
|
||||||
|
)
|
||||||
|
{
|
||||||
|
return SerialPortSetControl (Control);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
Retrieves the status of the control bits on a serial device
|
||||||
|
|
||||||
|
@param This Protocol instance pointer.
|
||||||
|
@param Control A pointer to return the current Control signals from the serial device.
|
||||||
|
|
||||||
|
@retval EFI_SUCCESS The control bits were read from the serial device.
|
||||||
|
@retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
|
||||||
|
|
||||||
|
**/
|
||||||
|
EFI_STATUS
|
||||||
|
EFIAPI
|
||||||
|
SerialGetControl (
|
||||||
|
IN EFI_SERIAL_IO_PROTOCOL *This,
|
||||||
|
OUT UINT32 *Control
|
||||||
|
)
|
||||||
|
{
|
||||||
|
return SerialPortGetControl (Control);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
Writes data to a serial device.
|
||||||
|
|
||||||
|
@param This Protocol instance pointer.
|
||||||
|
@param BufferSize On input, the size of the Buffer. On output, the amount of
|
||||||
|
data actually written.
|
||||||
|
@param Buffer The buffer of data to write
|
||||||
|
|
||||||
|
@retval EFI_SUCCESS The data was written.
|
||||||
|
@retval EFI_DEVICE_ERROR The device reported an error.
|
||||||
|
@retval EFI_TIMEOUT The data write was stopped due to a timeout.
|
||||||
|
|
||||||
|
**/
|
||||||
|
EFI_STATUS
|
||||||
|
EFIAPI
|
||||||
|
SerialWrite (
|
||||||
|
IN EFI_SERIAL_IO_PROTOCOL *This,
|
||||||
|
IN OUT UINTN *BufferSize,
|
||||||
|
IN VOID *Buffer
|
||||||
|
)
|
||||||
|
{
|
||||||
|
UINTN Count;
|
||||||
|
|
||||||
|
Count = SerialPortWrite (Buffer, *BufferSize);
|
||||||
|
|
||||||
|
if (Count != *BufferSize) {
|
||||||
|
*BufferSize = Count;
|
||||||
|
return EFI_TIMEOUT;
|
||||||
|
}
|
||||||
|
|
||||||
|
return EFI_SUCCESS;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
Reads data from a serial device.
|
||||||
|
|
||||||
|
@param This Protocol instance pointer.
|
||||||
|
@param BufferSize On input, the size of the Buffer. On output, the amount of
|
||||||
|
data returned in Buffer.
|
||||||
|
@param Buffer The buffer to return the data into.
|
||||||
|
|
||||||
|
@retval EFI_SUCCESS The data was read.
|
||||||
|
@retval EFI_DEVICE_ERROR The device reported an error.
|
||||||
|
@retval EFI_TIMEOUT The data write was stopped due to a timeout.
|
||||||
|
|
||||||
|
**/
|
||||||
|
EFI_STATUS
|
||||||
|
EFIAPI
|
||||||
|
SerialRead (
|
||||||
|
IN EFI_SERIAL_IO_PROTOCOL *This,
|
||||||
|
IN OUT UINTN *BufferSize,
|
||||||
|
OUT VOID *Buffer
|
||||||
|
)
|
||||||
|
{
|
||||||
|
UINTN Count;
|
||||||
|
|
||||||
|
Count = 0;
|
||||||
|
|
||||||
|
if (SerialPortPoll ()) {
|
||||||
|
Count = SerialPortRead (Buffer, *BufferSize);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (Count != *BufferSize) {
|
||||||
|
*BufferSize = Count;
|
||||||
|
return EFI_TIMEOUT;
|
||||||
|
}
|
||||||
|
|
||||||
|
return EFI_SUCCESS;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
Initialization for the Serial Io Protocol.
|
||||||
|
|
||||||
|
@param[in] ImageHandle The firmware allocated handle for the EFI image.
|
||||||
|
@param[in] SystemTable A pointer to the EFI System Table.
|
||||||
|
|
||||||
|
@retval EFI_SUCCESS The entry point is executed successfully.
|
||||||
|
@retval other Some error occurs when executing this entry point.
|
||||||
|
|
||||||
|
**/
|
||||||
|
EFI_STATUS
|
||||||
|
EFIAPI
|
||||||
|
SerialDxeInitialize (
|
||||||
|
IN EFI_HANDLE ImageHandle,
|
||||||
|
IN EFI_SYSTEM_TABLE *SystemTable
|
||||||
|
)
|
||||||
|
{
|
||||||
|
EFI_STATUS Status;
|
||||||
|
|
||||||
|
Status = SerialPortInitialize ();
|
||||||
|
if (EFI_ERROR (Status)) {
|
||||||
|
return Status;
|
||||||
|
}
|
||||||
|
|
||||||
|
mSerialIoMode.BaudRate = PcdGet64 (PcdUartDefaultBaudRate);
|
||||||
|
mSerialIoMode.DataBits = (UINT32) PcdGet8 (PcdUartDefaultDataBits);
|
||||||
|
mSerialIoMode.Parity = (UINT32) PcdGet8 (PcdUartDefaultParity);
|
||||||
|
mSerialIoMode.StopBits = (UINT32) PcdGet8 (PcdUartDefaultStopBits);
|
||||||
|
mSerialDevicePath.Uart.BaudRate = PcdGet64 (PcdUartDefaultBaudRate);
|
||||||
|
mSerialDevicePath.Uart.DataBits = PcdGet8 (PcdUartDefaultDataBits);
|
||||||
|
mSerialDevicePath.Uart.Parity = PcdGet8 (PcdUartDefaultParity);
|
||||||
|
mSerialDevicePath.Uart.StopBits = PcdGet8 (PcdUartDefaultStopBits);
|
||||||
|
|
||||||
|
//
|
||||||
|
// Make a new handle with Serial IO protocol and its device path on it.
|
||||||
|
//
|
||||||
|
Status = gBS->InstallMultipleProtocolInterfaces (
|
||||||
|
&mSerialHandle,
|
||||||
|
&gEfiSerialIoProtocolGuid, &mSerialIoTemplate,
|
||||||
|
&gEfiDevicePathProtocolGuid, &mSerialDevicePath,
|
||||||
|
NULL
|
||||||
|
);
|
||||||
|
ASSERT_EFI_ERROR (Status);
|
||||||
|
|
||||||
|
return Status;
|
||||||
|
}
|
||||||
|
|
||||||
Loading…
Reference in New Issue