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8a67d61d | 1 | /** @file\r |
2 | Copyright (c) 2004 - 2007, Intel Corporation\r | |
3 | All rights reserved. This program and the accompanying materials\r | |
4 | are licensed and made available under the terms and conditions of the BSD License\r | |
5 | which accompanies this distribution. The full text of the license may be found at\r | |
6 | http://opensource.org/licenses/bsd-license.php\r | |
7 | \r | |
8 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
9 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
10 | \r | |
11 | Module name:\r | |
12 | \r | |
13 | transmit.c\r | |
14 | \r | |
15 | Abstract:\r | |
16 | \r | |
17 | Revision history:\r | |
18 | 2000-Feb-03 M(f)J Genesis.\r | |
19 | \r | |
20 | **/\r | |
21 | \r | |
22 | #include "Snp.h"\r | |
23 | \r | |
24 | \r | |
25 | /**\r | |
26 | This routine calls undi to create the meadia header for the given data buffer.\r | |
27 | \r | |
28 | @param snp pointer to SNP driver structure\r | |
29 | @param MacHeaderPtr address where the media header will be filled in.\r | |
30 | @param MacHeaderSize size of the memory at MacHeaderPtr\r | |
31 | @param BufferPtr data buffer pointer\r | |
32 | @param BufferLength Size of data in the BufferPtr\r | |
33 | @param DestinationAddrPtr address of the destination mac address buffer\r | |
34 | @param SourceAddrPtr address of the source mac address buffer\r | |
35 | @param ProtocolPtr address of the protocol type\r | |
36 | \r | |
37 | @retval EFI_SUCCESS if successfully completed the undi call\r | |
38 | @retval Other error return from undi call.\r | |
39 | \r | |
40 | **/\r | |
41 | STATIC\r | |
42 | EFI_STATUS\r | |
43 | pxe_fillheader (\r | |
44 | SNP_DRIVER *snp,\r | |
45 | VOID *MacHeaderPtr,\r | |
46 | UINTN MacHeaderSize,\r | |
47 | VOID *BufferPtr,\r | |
48 | UINTN BufferLength,\r | |
49 | EFI_MAC_ADDRESS *DestinationAddrPtr,\r | |
50 | EFI_MAC_ADDRESS *SourceAddrPtr,\r | |
51 | UINT16 *ProtocolPtr\r | |
52 | )\r | |
53 | {\r | |
54 | PXE_CPB_FILL_HEADER_FRAGMENTED *cpb;\r | |
8a67d61d | 55 | \r |
56 | cpb = snp->cpb;\r | |
57 | if (SourceAddrPtr) {\r | |
58 | CopyMem (\r | |
59 | (VOID *) cpb->SrcAddr,\r | |
60 | (VOID *) SourceAddrPtr,\r | |
61 | snp->mode.HwAddressSize\r | |
62 | );\r | |
63 | } else {\r | |
64 | CopyMem (\r | |
65 | (VOID *) cpb->SrcAddr,\r | |
66 | (VOID *) &(snp->mode.CurrentAddress),\r | |
67 | snp->mode.HwAddressSize\r | |
68 | );\r | |
69 | }\r | |
70 | \r | |
71 | CopyMem (\r | |
72 | (VOID *) cpb->DestAddr,\r | |
73 | (VOID *) DestinationAddrPtr,\r | |
74 | snp->mode.HwAddressSize\r | |
75 | );\r | |
76 | \r | |
77 | //\r | |
78 | // we need to do the byte swapping\r | |
79 | //\r | |
80 | cpb->Protocol = (UINT16) PXE_SWAP_UINT16 (*ProtocolPtr);\r | |
81 | \r | |
82 | cpb->PacketLen = (UINT32) (BufferLength);\r | |
83 | cpb->MediaHeaderLen = (UINT16) MacHeaderSize;\r | |
84 | \r | |
85 | cpb->FragCnt = 2;\r | |
86 | cpb->reserved = 0;\r | |
87 | \r | |
88 | cpb->FragDesc[0].FragAddr = (UINT64)(UINTN) MacHeaderPtr;\r | |
89 | cpb->FragDesc[0].FragLen = (UINT32) MacHeaderSize;\r | |
90 | cpb->FragDesc[1].FragAddr = (UINT64)(UINTN) BufferPtr;\r | |
91 | cpb->FragDesc[1].FragLen = (UINT32) BufferLength;\r | |
92 | \r | |
93 | cpb->FragDesc[0].reserved = cpb->FragDesc[1].reserved = 0;\r | |
94 | \r | |
8a67d61d | 95 | snp->cdb.OpCode = PXE_OPCODE_FILL_HEADER;\r |
96 | snp->cdb.OpFlags = PXE_OPFLAGS_FILL_HEADER_FRAGMENTED;\r | |
97 | \r | |
98 | snp->cdb.DBsize = PXE_DBSIZE_NOT_USED;\r | |
99 | snp->cdb.DBaddr = PXE_DBADDR_NOT_USED;\r | |
100 | \r | |
101 | snp->cdb.CPBsize = sizeof (PXE_CPB_FILL_HEADER_FRAGMENTED);\r | |
102 | snp->cdb.CPBaddr = (UINT64)(UINTN) cpb;\r | |
103 | \r | |
104 | snp->cdb.StatCode = PXE_STATCODE_INITIALIZE;\r | |
105 | snp->cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;\r | |
106 | snp->cdb.IFnum = snp->if_num;\r | |
107 | snp->cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;\r | |
108 | \r | |
109 | //\r | |
110 | // Issue UNDI command and check result.\r | |
111 | //\r | |
112 | DEBUG ((EFI_D_NET, "\nsnp->undi.fill_header() "));\r | |
113 | \r | |
114 | (*snp->issue_undi32_command) ((UINT64) (UINTN) &snp->cdb);\r | |
115 | \r | |
8a67d61d | 116 | switch (snp->cdb.StatCode) {\r |
117 | case PXE_STATCODE_SUCCESS:\r | |
118 | return EFI_SUCCESS;\r | |
119 | \r | |
120 | case PXE_STATCODE_INVALID_PARAMETER:\r | |
121 | DEBUG (\r | |
122 | (EFI_D_ERROR,\r | |
123 | "\nsnp->undi.fill_header() %xh:%xh\n",\r | |
124 | snp->cdb.StatFlags,\r | |
125 | snp->cdb.StatCode)\r | |
126 | );\r | |
127 | \r | |
128 | return EFI_INVALID_PARAMETER;\r | |
129 | \r | |
130 | default:\r | |
131 | DEBUG (\r | |
132 | (EFI_D_ERROR,\r | |
133 | "\nsnp->undi.fill_header() %xh:%xh\n",\r | |
134 | snp->cdb.StatFlags,\r | |
135 | snp->cdb.StatCode)\r | |
136 | );\r | |
137 | \r | |
138 | return EFI_DEVICE_ERROR;\r | |
139 | }\r | |
140 | }\r | |
141 | \r | |
142 | \r | |
143 | /**\r | |
144 | This routine calls undi to transmit the given data buffer\r | |
145 | \r | |
146 | @param snp pointer to SNP driver structure\r | |
147 | @param BufferPtr data buffer pointer\r | |
148 | @param BufferLength Size of data in the BufferPtr\r | |
149 | \r | |
150 | @retval EFI_SUCCESS if successfully completed the undi call\r | |
151 | @retval Other error return from undi call.\r | |
152 | \r | |
153 | **/\r | |
154 | STATIC\r | |
155 | EFI_STATUS\r | |
156 | pxe_transmit (\r | |
157 | SNP_DRIVER *snp,\r | |
158 | VOID *BufferPtr,\r | |
159 | UINTN BufferLength\r | |
160 | )\r | |
161 | {\r | |
162 | PXE_CPB_TRANSMIT *cpb;\r | |
163 | EFI_STATUS Status;\r | |
8a67d61d | 164 | \r |
165 | cpb = snp->cpb;\r | |
166 | cpb->FrameAddr = (UINT64) (UINTN) BufferPtr;\r | |
167 | cpb->DataLen = (UINT32) BufferLength;\r | |
8a67d61d | 168 | \r |
169 | cpb->MediaheaderLen = 0;\r | |
170 | cpb->reserved = 0;\r | |
171 | \r | |
172 | snp->cdb.OpFlags = PXE_OPFLAGS_TRANSMIT_WHOLE;\r | |
173 | \r | |
174 | snp->cdb.CPBsize = sizeof (PXE_CPB_TRANSMIT);\r | |
175 | snp->cdb.CPBaddr = (UINT64)(UINTN) cpb;\r | |
176 | \r | |
177 | snp->cdb.OpCode = PXE_OPCODE_TRANSMIT;\r | |
178 | snp->cdb.DBsize = PXE_DBSIZE_NOT_USED;\r | |
179 | snp->cdb.DBaddr = PXE_DBADDR_NOT_USED;\r | |
180 | \r | |
181 | snp->cdb.StatCode = PXE_STATCODE_INITIALIZE;\r | |
182 | snp->cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;\r | |
183 | snp->cdb.IFnum = snp->if_num;\r | |
184 | snp->cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;\r | |
185 | \r | |
186 | //\r | |
187 | // Issue UNDI command and check result.\r | |
188 | //\r | |
189 | DEBUG ((EFI_D_NET, "\nsnp->undi.transmit() "));\r | |
190 | DEBUG ((EFI_D_NET, "\nsnp->cdb.OpCode == %x", snp->cdb.OpCode));\r | |
191 | DEBUG ((EFI_D_NET, "\nsnp->cdb.CPBaddr == %X", snp->cdb.CPBaddr));\r | |
192 | DEBUG ((EFI_D_NET, "\nsnp->cdb.DBaddr == %X", snp->cdb.DBaddr));\r | |
193 | DEBUG ((EFI_D_NET, "\ncpb->FrameAddr == %X\n", cpb->FrameAddr));\r | |
194 | \r | |
195 | (*snp->issue_undi32_command) ((UINT64) (UINTN) &snp->cdb);\r | |
196 | \r | |
197 | DEBUG ((EFI_D_NET, "\nexit snp->undi.transmit() "));\r | |
198 | DEBUG ((EFI_D_NET, "\nsnp->cdb.StatCode == %r", snp->cdb.StatCode));\r | |
199 | \r | |
200 | //\r | |
201 | // we will unmap the buffers in get_status call, not here\r | |
202 | //\r | |
203 | switch (snp->cdb.StatCode) {\r | |
204 | case PXE_STATCODE_SUCCESS:\r | |
205 | return EFI_SUCCESS;\r | |
206 | \r | |
207 | case PXE_STATCODE_QUEUE_FULL:\r | |
208 | case PXE_STATCODE_BUSY:\r | |
209 | Status = EFI_NOT_READY;\r | |
210 | break;\r | |
211 | \r | |
212 | default:\r | |
213 | Status = EFI_DEVICE_ERROR;\r | |
214 | }\r | |
215 | \r | |
216 | DEBUG (\r | |
217 | (EFI_D_ERROR,\r | |
218 | "\nsnp->undi.transmit() %xh:%xh\n",\r | |
219 | snp->cdb.StatFlags,\r | |
220 | snp->cdb.StatCode)\r | |
221 | );\r | |
222 | \r | |
223 | return Status;\r | |
224 | }\r | |
225 | \r | |
226 | \r | |
227 | /**\r | |
228 | This is the snp interface routine for transmitting a packet. this routine\r | |
229 | basically retrieves the snp structure, checks the snp state and calls\r | |
230 | pxe_fill_header and pxe_transmit calls to complete the transmission.\r | |
231 | \r | |
232 | @param this pointer to SNP driver context\r | |
233 | @param MacHeaderSize size of the memory at MacHeaderPtr\r | |
234 | @param BufferLength Size of data in the BufferPtr\r | |
235 | @param BufferPtr data buffer pointer\r | |
236 | @param SourceAddrPtr address of the source mac address buffer\r | |
237 | @param DestinationAddrPtr address of the destination mac address buffer\r | |
238 | @param ProtocolPtr address of the protocol type\r | |
239 | \r | |
240 | @retval EFI_SUCCESS if successfully completed the undi call\r | |
241 | @retval Other error return from undi call.\r | |
242 | \r | |
243 | **/\r | |
244 | EFI_STATUS\r | |
245 | EFIAPI\r | |
246 | snp_undi32_transmit (\r | |
247 | IN EFI_SIMPLE_NETWORK_PROTOCOL * this,\r | |
248 | IN UINTN MacHeaderSize,\r | |
249 | IN UINTN BufferLength,\r | |
250 | IN VOID *BufferPtr,\r | |
251 | IN EFI_MAC_ADDRESS * SourceAddrPtr OPTIONAL,\r | |
252 | IN EFI_MAC_ADDRESS * DestinationAddrPtr OPTIONAL,\r | |
253 | IN UINT16 *ProtocolPtr OPTIONAL\r | |
254 | )\r | |
255 | {\r | |
256 | SNP_DRIVER *snp;\r | |
257 | EFI_STATUS Status;\r | |
258 | EFI_TPL OldTpl;\r | |
259 | \r | |
260 | if (this == NULL) {\r | |
261 | return EFI_INVALID_PARAMETER;\r | |
262 | }\r | |
263 | \r | |
264 | snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (this);\r | |
265 | \r | |
266 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
267 | \r | |
268 | if (snp == NULL) {\r | |
269 | return EFI_DEVICE_ERROR;\r | |
270 | }\r | |
271 | \r | |
272 | switch (snp->mode.State) {\r | |
273 | case EfiSimpleNetworkInitialized:\r | |
274 | break;\r | |
275 | \r | |
276 | case EfiSimpleNetworkStopped:\r | |
277 | Status = EFI_NOT_STARTED;\r | |
278 | goto ON_EXIT;\r | |
279 | \r | |
280 | default:\r | |
281 | Status = EFI_DEVICE_ERROR;\r | |
282 | goto ON_EXIT;\r | |
283 | }\r | |
284 | \r | |
285 | if (BufferPtr == NULL) {\r | |
286 | Status = EFI_INVALID_PARAMETER;\r | |
287 | goto ON_EXIT;\r | |
288 | }\r | |
289 | \r | |
290 | if (BufferLength < snp->mode.MediaHeaderSize) {\r | |
291 | Status = EFI_BUFFER_TOO_SMALL;\r | |
292 | goto ON_EXIT;\r | |
293 | }\r | |
294 | \r | |
295 | //\r | |
296 | // if the MacHeaderSize is non-zero, we need to fill up the header and for that\r | |
297 | // we need the destination address and the protocol\r | |
298 | //\r | |
299 | if (MacHeaderSize != 0) {\r | |
300 | if (MacHeaderSize != snp->mode.MediaHeaderSize || DestinationAddrPtr == 0 || ProtocolPtr == 0) {\r | |
301 | Status = EFI_INVALID_PARAMETER;\r | |
302 | goto ON_EXIT;\r | |
303 | }\r | |
304 | \r | |
305 | Status = pxe_fillheader (\r | |
306 | snp,\r | |
307 | BufferPtr,\r | |
308 | MacHeaderSize,\r | |
309 | (UINT8 *) BufferPtr + MacHeaderSize,\r | |
310 | BufferLength - MacHeaderSize,\r | |
311 | DestinationAddrPtr,\r | |
312 | SourceAddrPtr,\r | |
313 | ProtocolPtr\r | |
314 | );\r | |
315 | \r | |
316 | if (EFI_ERROR (Status)) {\r | |
317 | goto ON_EXIT;\r | |
318 | }\r | |
319 | }\r | |
320 | \r | |
321 | Status = pxe_transmit (snp, BufferPtr, BufferLength);\r | |
322 | \r | |
323 | ON_EXIT:\r | |
324 | gBS->RestoreTPL (OldTpl);\r | |
325 | \r | |
326 | return Status;\r | |
327 | }\r |