sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ArmPlatformPkg/PL011Uart: Allowed to change UART settings in its initialization function

Browse Source 
Because this driver can be used for different purposes (Terminal, Debug port, communication),
its initialization function has been extended to accept additional settings.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13071 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin
2012-02-29 17:19:52 +00:00
parent b0855f925c
commit 051e63bb55
6 changed files with 650 additions and 368 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.c
View File

@@ -1,8 +1,8 @@
/** @file
Serial I/O Port library functions with no library constructor/destructor
Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
Copyright (c) 2012, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@@ -14,7 +14,7 @@
**/
#include <Include/Uefi.h>
#include <Include/Base.h>
#include <Library/IoLib.h>
#include <Library/PcdLib.h>
@@ -27,7 +27,7 @@
Programmed hardware of Serial port.
@return Always return EFI_UNSUPPORTED.
@return Always return RETURN_UNSUPPORTED.
**/
RETURN_STATUS
@@ -36,21 +36,24 @@ SerialPortInitialize (
VOID
)
{
// No parity, 1 stop, no fifo, 8 data bits
return PL011UartInitialize (
return PL011UartInitializePort (
(UINTN)PcdGet64 (PcdSerialRegisterBase),
(UINTN)PcdGet64 (PcdUartDefaultBaudRate),
PL011_UARTLCR_H_WLEN_8);
0, // Use the default value for Fifo depth
0, // Use the default value for Timeout,
(EFI_PARITY_TYPE)PcdGet8 (PcdUartDefaultParity),
PcdGet8 (PcdUartDefaultDataBits),
(EFI_STOP_BITS_TYPE) PcdGet8 (PcdUartDefaultStopBits));
}
/**
Write data to serial device.
@param Buffer Point of data buffer which need to be writed.
@param Buffer Point of data buffer which need to be written.
@param NumberOfBytes Number of output bytes which are cached in Buffer.
@retval 0 Write data failed.
@retval !0 Actual number of bytes writed to serial device.
@retval !0 Actual number of bytes written to serial device.
**/
UINTN
@@ -64,13 +67,13 @@ SerialPortWrite (
}
/**
Read data from serial device and save the datas in buffer.
Read data from serial device and save the data in buffer.
@param Buffer Point of data buffer which need to be writed.
@param Buffer Point of data buffer which need to be written.
@param NumberOfBytes Number of output bytes which are cached in Buffer.
@retval 0 Read data failed.
@retval !0 Aactual number of bytes read from serial device.
@retval !0 Actual number of bytes read from serial device.
**/
UINTN
@@ -84,10 +87,10 @@ SerialPortRead (
}
/**
Check to see if any data is avaiable to be read from the debug device.
Check to see if any data is available to be read from the debug device.
@retval EFI_SUCCESS At least one byte of data is avaiable to be read
@retval EFI_NOT_READY No data is avaiable to be read
@retval EFI_SUCCESS At least one byte of data is available to be read
@retval EFI_NOT_READY No data is available to be read
@retval EFI_DEVICE_ERROR The serial device is not functioning properly
**/

80
ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortLib.inf
View File

@@ -1,38 +1,42 @@
#/** @file
#
# Component discription file for NorFlashDxe module
#
# Copyright (c) 2011, ARM Ltd. All rights reserved.<BR>
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
#
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#**/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = PL011SerialPortLib
FILE_GUID = 8ecefc8f-a2c4-4091-b80f-20f7aeb0567f
MODULE_TYPE = BASE
VERSION_STRING = 1.0
LIBRARY_CLASS = SerialPortLib
[Sources.common]
PL011SerialPortLib.c
[LibraryClasses]
PL011UartLib
PcdLib
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
ArmPlatformPkg/ArmPlatformPkg.dec
[Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdSerialRegisterBase
gEfiMdePkgTokenSpaceGuid.PcdUartDefaultBaudRate
#/** @file
#
# Component description file for PL011SerialPortLib module
#
# Copyright (c) 2011-2012, ARM Ltd. All rights reserved.<BR>
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
#
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#**/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = PL011SerialPortLib
FILE_GUID = 8ecefc8f-a2c4-4091-b80f-20f7aeb0567f
MODULE_TYPE = BASE
VERSION_STRING = 1.0
LIBRARY_CLASS = SerialPortLib
[Sources.common]
PL011SerialPortLib.c
[LibraryClasses]
PL011UartLib
PcdLib
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
ArmPlatformPkg/ArmPlatformPkg.dec
[Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdSerialRegisterBase
gEfiMdePkgTokenSpaceGuid.PcdUartDefaultBaudRate
gEfiMdePkgTokenSpaceGuid.PcdUartDefaultDataBits
gEfiMdePkgTokenSpaceGuid.PcdUartDefaultParity
gEfiMdePkgTokenSpaceGuid.PcdUartDefaultStopBits