From a3f98646f68239bf9c577b24689bc69cbcde1b47 Mon Sep 17 00:00:00 2001 From: andrewfish Date: Thu, 28 Jan 2010 21:32:01 +0000 Subject: Moving OMAP 3530 code out of BeagleBoard package into its own package git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9854 6f19259b-4bc3-4df7-8a09-765794883524 --- Omap35xxPkg/Library/SerialPortLib/SerialPortLib.c | 124 +++++++++++++++++++++ .../Library/SerialPortLib/SerialPortLib.inf | 43 +++++++ 2 files changed, 167 insertions(+) create mode 100644 Omap35xxPkg/Library/SerialPortLib/SerialPortLib.c create mode 100644 Omap35xxPkg/Library/SerialPortLib/SerialPortLib.inf (limited to 'Omap35xxPkg/Library/SerialPortLib') diff --git a/Omap35xxPkg/Library/SerialPortLib/SerialPortLib.c b/Omap35xxPkg/Library/SerialPortLib/SerialPortLib.c new file mode 100644 index 0000000000..0509deb8ab --- /dev/null +++ b/Omap35xxPkg/Library/SerialPortLib/SerialPortLib.c @@ -0,0 +1,124 @@ +/** @file + Serial I/O Port library functions with no library constructor/destructor + + + Copyright (c) 2008-2009, Apple Inc. All rights reserved. + + All rights reserved. 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. + +**/ + +#include +#include +#include +#include +#include +#include +#include + +/* + + Programmed hardware of Serial port. + + @return Always return EFI_UNSUPPORTED. + +**/ +RETURN_STATUS +EFIAPI +SerialPortInitialize ( + VOID + ) +{ + // assume assembly code at reset vector has setup UART + return RETURN_SUCCESS; +} + +/** + Write data to serial device. + + @param Buffer Point of data buffer which need to be writed. + @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. + +**/ +UINTN +EFIAPI +SerialPortWrite ( + IN UINT8 *Buffer, + IN UINTN NumberOfBytes +) +{ + UINT32 LSR = UartBase(PcdGet32(PcdBeagleConsoleUart)) + UART_LSR_REG; + UINT32 THR = UartBase(PcdGet32(PcdBeagleConsoleUart)) + UART_THR_REG; + UINTN Count; + + for (Count = 0; Count < NumberOfBytes; Count++, Buffer++) { + while ((MmioRead8(LSR) & UART_LSR_TX_FIFO_E_MASK) == UART_LSR_TX_FIFO_E_NOT_EMPTY); + MmioWrite8(THR, *Buffer); + } + + return NumberOfBytes; +} + + +/** + Read data from serial device and save the datas in buffer. + + @param Buffer Point of data buffer which need to be writed. + @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. + +**/ +UINTN +EFIAPI +SerialPortRead ( + OUT UINT8 *Buffer, + IN UINTN NumberOfBytes +) +{ + UINT32 LSR = UartBase(PcdGet32(PcdBeagleConsoleUart)) + UART_LSR_REG; + UINT32 RBR = UartBase(PcdGet32(PcdBeagleConsoleUart)) + UART_RBR_REG; + UINTN Count; + + for (Count = 0; Count < NumberOfBytes; Count++, Buffer++) { + while ((MmioRead8(LSR) & UART_LSR_RX_FIFO_E_MASK) == UART_LSR_RX_FIFO_E_EMPTY); + *Buffer = MmioRead8(RBR); + } + + return NumberOfBytes; +} + + +/** + Check to see if any data is avaiable 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_DEVICE_ERROR The serial device is not functioning properly + +**/ +BOOLEAN +EFIAPI +SerialPortPoll ( + VOID + ) +{ + UINT32 LSR = UartBase(PcdGet32(PcdBeagleConsoleUart)) + UART_LSR_REG; + + if ((MmioRead8(LSR) & UART_LSR_RX_FIFO_E_MASK) == UART_LSR_RX_FIFO_E_NOT_EMPTY) { + return TRUE; + } else { + return FALSE; + } +} + diff --git a/Omap35xxPkg/Library/SerialPortLib/SerialPortLib.inf b/Omap35xxPkg/Library/SerialPortLib/SerialPortLib.inf new file mode 100644 index 0000000000..237f0ea5a4 --- /dev/null +++ b/Omap35xxPkg/Library/SerialPortLib/SerialPortLib.inf @@ -0,0 +1,43 @@ +#/** @file +# EDK Serial port lib +# +# Copyright (c) 2009, Apple Inc. +# +# All rights reserved. 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 = BeagleBoardSerialPortLib + FILE_GUID = 97546cbd-c0ff-4c48-ab0b-e4f58862acd3 + MODULE_TYPE = PEIM + VERSION_STRING = 1.0 + LIBRARY_CLASS = SerialPortLib + + +# +# VALID_ARCHITECTURES = IA32 X64 IPF EBC +# + +[Sources.common] + SerialPortLib.c + +[LibraryClasses] + DebugLib + IoLib + OmapLib + +[Packages] + MdePkg/MdePkg.dec + Omap35xxPkg/Omap35xxPkg.dec + +[FixedPcd] + gOmap35xxTokenSpaceGuid.PcdBeagleConsoleUart + -- cgit v1.2.3