Import BaseMemoryLibMmx;
[mirror_edk2.git] / IntelFrameworkModulePkg / Library / EdkSerialPortLibNull / SerialPortLibNull.c
CommitLineData
ad1a1798 1/** @file\r
2 Serial I/O Port library functions with no library constructor/destructor\r
3\r
4 Copyright (c) 2006, Intel Corporation\r
5 All rights reserved. This program and the accompanying materials\r
6 are licensed and made available under the terms and conditions of the BSD License\r
7 which accompanies this distribution. The full text of the license may be found at\r
8 http://opensource.org/licenses/bsd-license.php\r
9\r
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12\r
13 Module Name: SerialPortLibNull.c\r
14\r
15**/\r
16\r
17//\r
18// The package level header files this module uses\r
19//\r
20#include <FrameworkPei.h>\r
21//\r
22// The protocols, PPI and GUID defintions for this module\r
23//\r
24//\r
25// The Library classes this module consumes\r
26//\r
27#include <Library/SerialPortLib.h>\r
28\r
29/*\r
30\r
31 Programmed hardware of Serial port.\r
32\r
33 @return Always return EFI_UNSUPPORTED.\r
34\r
35**/\r
36EFI_STATUS\r
37EFIAPI\r
38SerialPortInitialize (\r
39 VOID\r
40 )\r
41{\r
42 return EFI_UNSUPPORTED;\r
43}\r
44\r
45/**\r
46 Write data to serial device.\r
47\r
48 @param Buffer Point of data buffer which need to be writed.\r
49 @param NumberOfBytes Number of output bytes which are cached in Buffer.\r
50\r
51 @retval 0 Write data failed.\r
52 @retval !0 Actual number of bytes writed to serial device.\r
53\r
54**/\r
55UINTN\r
56EFIAPI\r
57SerialPortWrite (\r
58 IN UINT8 *Buffer,\r
59 IN UINTN NumberOfBytes\r
60)\r
61{\r
62 return 0;\r
63}\r
64\r
65\r
66/**\r
67 Read data from serial device and save the datas in buffer.\r
68\r
69 @param Buffer Point of data buffer which need to be writed.\r
70 @param NumberOfBytes Number of output bytes which are cached in Buffer.\r
71\r
72 @retval 0 Read data failed.\r
73 @retval !0 Aactual number of bytes read from serial device.\r
74\r
75**/\r
76UINTN\r
77EFIAPI\r
78SerialPortRead (\r
79 OUT UINT8 *Buffer,\r
80 IN UINTN NumberOfBytes\r
81)\r
82{\r
83 return 0;\r
84}\r
85\r