diff options
| author | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-06-29 03:27:02 +0000 |
|---|---|---|
| committer | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-06-29 03:27:02 +0000 |
| commit | fd7a76af08f21401713f4ca595c0bdde49f6f388 (patch) | |
| tree | d8c893799e5d0b78460d278b1de525e4c2654dcf /MdePkg | |
| parent | 2bf16f4cfe08d6a4f03c72042ab83bcb91528734 (diff) | |
| download | edk2-platforms-fd7a76af08f21401713f4ca595c0bdde49f6f388.tar.xz | |
add SerialPortLib.h
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2874 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg')
| -rw-r--r-- | MdePkg/Include/Library/SerialPortLib.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/MdePkg/Include/Library/SerialPortLib.h b/MdePkg/Include/Library/SerialPortLib.h new file mode 100644 index 0000000000..153e38cd15 --- /dev/null +++ b/MdePkg/Include/Library/SerialPortLib.h @@ -0,0 +1,76 @@ +
+/** @file
+ Serial I/O Port library functions with no library constructor/destructor
+
+ Copyright (c) 2006, Intel Corporation
+ 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.
+
+ Module Name: SerialPortLib.h
+
+**/
+
+#ifndef __SERIAL_PORT_LIB__
+#define __SERIAL_PORT_LIB__
+
+/**
+
+ Programmed hardware of Serial port.
+
+ @return Status of Serial Port Device initialization.
+
+**/
+EFI_STATUS
+EFIAPI
+SerialPortInitialize (
+ VOID
+ );
+
+/**
+ Write data to serial device.
+
+ If the buffer is NULL, then return 0;
+ if NumberOfBytes is zero, then return 0.
+
+ @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
+);
+
+
+/**
+ Read data from serial device and save the datas in buffer.
+
+ If the buffer is NULL, then return zero;
+ if NumberOfBytes is zero, then return zero.
+
+ @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
+);
+
+
+#endif
|