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Formalize comments for Protocols and PPIs.
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d1f95000 1/** @file\r
2 EFI_TAPE_IO_PROTOCOL as defined in the UEFI 2.0.\r
3 Provide services to control and access a tape device.\r
4\r
4ca9b6c4 5 Copyright (c) 2006 - 2008, Intel Corporation \r
d1f95000 6 All rights reserved. This program and the accompanying materials \r
7 are licensed and made available under the terms and conditions of the BSD License \r
8 which accompanies this distribution. The full text of the license may be found at \r
9 http://opensource.org/licenses/bsd-license.php \r
10\r
11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
13\r
d1f95000 14**/\r
15\r
16#ifndef __EFI_TAPE_IO_PROTOCOL_H__\r
17#define __EFI_TAPE_IO_PROTOCOL_H__\r
18\r
19#define EFI_TAPE_IO_PROTOCOL_GUID \\r
20 { \\r
21 0x1e93e633, 0xd65a, 0x459e, {0xab, 0x84, 0x93, 0xd9, 0xec, 0x26, 0x6d, 0x18 } \\r
22 }\r
23\r
24typedef struct _EFI_TAPE_IO_PROTOCOL EFI_TAPE_IO_PROTOCOL;\r
25\r
26typedef struct {\r
27 UINT64 Signature;\r
28 UINT32 Revision;\r
29 UINT32 BootDescSize;\r
30 UINT32 BootDescCRC;\r
31 EFI_GUID TapeGUID;\r
32 EFI_GUID TapeType;\r
33 EFI_GUID TapeUnique;\r
34 UINT32 BLLocation;\r
35 UINT32 BLBlocksize;\r
36 UINT32 BLFilesize;\r
37 CHAR8 OSVersion[40];\r
38 CHAR8 AppVersion[40];\r
39 CHAR8 CreationDate[10];\r
40 CHAR8 CreationTime[10];\r
41 CHAR8 SystemName[256]; // UTF-8\r
42 CHAR8 TapeTitle[120]; // UTF-8\r
43 CHAR8 pad[468]; // pad to 1024\r
44} TAPE_HEADER;\r
45\r
46/**\r
47 Reads from the tape.\r
48\r
49 @param This A pointer to the EFI_TAPE_IO_PROTOCOL instance.\r
50 @param BufferSize Size of the buffer in bytes pointed to by Buffer.\r
51 @param Buffer Pointer to the buffer for data to be read into.\r
52\r
53 @retval EFI_SUCCESS Data was successfully transferred from the media.\r
54 @retval EFI_END_OF_FILE A filemark was encountered which limited the data\r
55 transferred by the read operation or the head is positioned\r
56 just after a filemark.\r
57 @retval EFI_NO_MEDIA No media is loaded in the device.\r
58 @retval EFI_NOT_READY The transfer failed since the device was not ready (e.g. not\r
59 online). The transfer may be retried at a later time.\r
60 @retval EFI_UNSUPPORTED The device does not support this type of transfer.\r
61 @retval EFI_TIMEOUT The transfer failed to complete within the timeout specified.\r
62 @retval EFI_MEDIA_CHANGED The media in the device was changed since the last access.\r
63 The transfer was aborted since the current position of the\r
64 media may be incorrect.\r
65 @retval EFI_INVALID_PARAMETER A NULL Buffer was specified with a non-zero\r
66 BufferSize or the device is operating in fixed block\r
67 size mode and the BufferSize was not a multiple of\r
68 device's fixed block size\r
69 @retval EFI_DEVICE_ERROR A device error occurred while attempting to transfer data\r
70 from the media.\r
71\r
72**/\r
73typedef \r
74EFI_STATUS\r
8b13229b 75(EFIAPI *EFI_TAPE_READ)(\r
d1f95000 76 IN EFI_TAPE_IO_PROTOCOL *This,\r
77 IN OUT UINTN *BufferSize,\r
78 OUT VOID *Buffer\r
ed66e1bc 79 ); \r
d1f95000 80\r
81/**\r
82 Writes to the tape.\r
83\r
84 @param This A pointer to the EFI_TAPE_IO_PROTOCOL instance.\r
85 @param BufferSize Size of the buffer in bytes pointed to by Buffer.\r
86 @param Buffer Pointer to the buffer for data to be written from.\r
87\r
88 @retval EFI_SUCCESS Data was successfully transferred to the media.\r
89 @retval EFI_END_OF_MEDIA The logical end of media has been reached. Data may have\r
90 been successfully transferred to the media.\r
91 @retval EFI_NO_MEDIA No media is loaded in the device.\r
92 @retval EFI_NOT_READY The transfer failed since the device was not ready (e.g. not\r
93 online). The transfer may be retried at a later time.\r
94 @retval EFI_UNSUPPORTED The device does not support this type of transfer.\r
95 @retval EFI_TIMEOUT The transfer failed to complete within the timeout specified.\r
96 @retval EFI_MEDIA_CHANGED The media in the device was changed since the last access.\r
97 The transfer was aborted since the current position of the\r
98 media may be incorrect.\r
99 @retval EFI_WRITE_PROTECTED The media in the device is write-protected. The transfer\r
100 was aborted since a write cannot be completed.\r
101 @retval EFI_INVALID_PARAMETER A NULL Buffer was specified with a non-zero\r
102 BufferSize or the device is operating in fixed block\r
103 size mode and the BufferSize was not a multiple of\r
104 device's fixed block size\r
105 @retval EFI_DEVICE_ERROR A device error occurred while attempting to transfer data\r
106 from the media.\r
107\r
108**/\r
109typedef \r
110EFI_STATUS\r
8b13229b 111(EFIAPI *EFI_TAPE_WRITE)(\r
d1f95000 112 IN EFI_TAPE_IO_PROTOCOL *This,\r
113 IN UINTN *BufferSize,\r
114 IN VOID *Buffer\r
ed66e1bc 115 ); \r
d1f95000 116 \r
117\r
118/**\r
119 Rewinds the tape.\r
120\r
121 @param This A pointer to the EFI_TAPE_IO_PROTOCOL instance.\r
122\r
123 @retval EFI_SUCCESS The media was successfully repositioned.\r
124 @retval EFI_NO_MEDIA No media is loaded in the device.\r
125 @retval EFI_NOT_READY Repositioning the media failed since the device was not\r
126 ready (e.g. not online). The transfer may be retried at a later time.\r
127 @retval EFI_UNSUPPORTED The device does not support this type of media repositioning.\r
128 @retval EFI_TIMEOUT Repositioning of the media did not complete within the timeout specified.\r
129 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reposition the media.\r
130\r
131**/\r
132typedef \r
133EFI_STATUS\r
8b13229b 134(EFIAPI *EFI_TAPE_REWIND)(\r
d1f95000 135 IN EFI_TAPE_IO_PROTOCOL *This\r
ed66e1bc 136 ); \r
d1f95000 137\r
138\r
139/**\r
140 Positions the tape.\r
141\r
142 @param This A pointer to the EFI_TAPE_IO_PROTOCOL instance.\r
143 @param Direction Direction and number of data blocks or filemarks to space over on media.\r
144 @param Type Type of mark to space over on media.\r
d04dc027 145 The following Type marks are mandatory:\r
146 BLOCK type : 0 \r
147 FILEMARK type : 1\r
d1f95000 148\r
149 @retval EFI_SUCCESS The media was successfully repositioned.\r
150 @retval EFI_END_OF_MEDIA Beginning or end of media was reached before the\r
151 indicated number of data blocks or filemarks were found.\r
152 @retval EFI_NO_MEDIA No media is loaded in the device.\r
153 @retval EFI_NOT_READY The reposition failed since the device was not ready (e.g. not\r
154 online). The reposition may be retried at a later time.\r
155 @retval EFI_UNSUPPORTED The device does not support this type of repositioning.\r
156 @retval EFI_TIMEOUT The repositioning failed to complete within the timeout specified.\r
157 @retval EFI_MEDIA_CHANGED The media in the device was changed since the last access.\r
158 Repositioning the media was aborted since the current\r
159 position of the media may be incorrect.\r
160 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reposition the media.\r
161\r
162**/\r
163typedef\r
164EFI_STATUS\r
8b13229b 165(EFIAPI *EFI_TAPE_SPACE)(\r
d1f95000 166 IN EFI_TAPE_IO_PROTOCOL *This,\r
167 INTN Direction,\r
168 UINTN Type\r
ed66e1bc 169 ); \r
d1f95000 170\r
171\r
172/**\r
173 Writes filemarks to the media.\r
174\r
175 @param This A pointer to the EFI_TAPE_IO_PROTOCOL instance.\r
176 @param Count Number of filemarks to write to the media.\r
177\r
178 @retval EFI_SUCCESS Data was successfully transferred from the media.\r
179 @retval EFI_NO_MEDIA No media is loaded in the device.\r
180 @retval EFI_NOT_READY The transfer failed since the device was not ready (e.g. not\r
181 online). The transfer may be retried at a later time.\r
182 @retval EFI_UNSUPPORTED The device does not support this type of repositioning.\r
183 @retval EFI_TIMEOUT The transfer failed to complete within the timeout specified.\r
184 @retval EFI_MEDIA_CHANGED The media in the device was changed since the last access.\r
185 The transfer was aborted since the current position of the\r
186 media may be incorrect.\r
187 @retval EFI_DEVICE_ERROR A device error occurred while attempting to transfer data from the media.\r
188\r
189**/\r
190typedef \r
191EFI_STATUS\r
8b13229b 192(EFIAPI *EFI_TAPE_WRITEFM)(\r
d1f95000 193 IN EFI_TAPE_IO_PROTOCOL *This,\r
194 IN UINTN Count\r
ed66e1bc 195 ); \r
d1f95000 196\r
197\r
198/**\r
199 Resets the tape device.\r
200\r
201 @param This A pointer to the EFI_TAPE_IO_PROTOCOL instance.\r
202 @param ExtendedVerification Indicates whether the parent bus should also be reset.\r
203\r
204 @retval EFI_SUCCESS The bus and/or device were successfully reset.\r
205 @retval EFI_NO_MEDIA No media is loaded in the device.\r
206 @retval EFI_NOT_READY The reset failed since the device and/or bus was not ready.\r
207 The reset may be retried at a later time.\r
208 @retval EFI_UNSUPPORTED The device does not support this type of reset.\r
209 @retval EFI_TIMEOUT The reset did not complete within the timeout allowed.\r
210 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the bus and/or device.\r
211\r
212**/\r
213typedef \r
214EFI_STATUS\r
8b13229b 215(EFIAPI *EFI_TAPE_RESET)(\r
d1f95000 216 IN EFI_TAPE_IO_PROTOCOL *This,\r
217 IN BOOLEAN ExtendedVerification\r
ed66e1bc 218 ); \r
d1f95000 219\r
44717a39 220///\r
221/// The EFI_TAPE_IO_PROTOCOL provides basic sequential operations for tape devices. \r
222/// These include read, write, rewind, space, write filemarks and reset functions. \r
223/// Per this specification, a boot application uses the services of this protocol \r
224/// to load the bootloader image from tape.\r
225///\r
d1f95000 226struct _EFI_TAPE_IO_PROTOCOL {\r
227 EFI_TAPE_READ TapeRead;\r
228 EFI_TAPE_WRITE TapeWrite;\r
229 EFI_TAPE_REWIND TapeRewind;\r
230 EFI_TAPE_SPACE TapeSpace;\r
231 EFI_TAPE_WRITEFM TapeWriteFM;\r
232 EFI_TAPE_RESET TapeReset;\r
233};\r
234\r
235extern EFI_GUID gEfiTapeIoProtocolGuid;\r
236\r
237#endif\r