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913cb9dc | 1 | /** @file\r |
2 | \r | |
78c2ffb5 | 3 | This file contains URB request, each request is warpped in a\r |
4 | URB (Usb Request Block).\r | |
5 | \r | |
597f4ee2 | 6 | Copyright (c) 2007 - 2009, Intel Corporation\r |
913cb9dc | 7 | All rights reserved. This program and the accompanying materials\r |
8 | are licensed and made available under the terms and conditions of the BSD License\r | |
9 | which accompanies this distribution. The full text of the license may be found at\r | |
10 | http://opensource.org/licenses/bsd-license.php\r | |
11 | \r | |
12 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
13 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
14 | \r | |
913cb9dc | 15 | **/\r |
16 | \r | |
17 | #include "Ehci.h"\r | |
18 | \r | |
19 | \r | |
20 | /**\r | |
78c2ffb5 | 21 | Create a single QTD to hold the data.\r |
913cb9dc | 22 | \r |
78c2ffb5 | 23 | @param Ehc The EHCI device.\r |
24 | @param Data Current data not associated with a QTD.\r | |
25 | @param DataLen The length of the data.\r | |
26 | @param PktId Packet ID to use in the QTD.\r | |
27 | @param Toggle Data toggle to use in the QTD.\r | |
28 | @param MaxPacket Maximu packet length of the endpoint.\r | |
913cb9dc | 29 | \r |
78c2ffb5 | 30 | @return Created QTD or NULL if failed to create one.\r |
913cb9dc | 31 | \r |
32 | **/\r | |
33 | EHC_QTD *\r | |
34 | EhcCreateQtd (\r | |
35 | IN USB2_HC_DEV *Ehc,\r | |
36 | IN UINT8 *Data,\r | |
37 | IN UINTN DataLen,\r | |
38 | IN UINT8 PktId,\r | |
39 | IN UINT8 Toggle,\r | |
40 | IN UINTN MaxPacket\r | |
41 | )\r | |
42 | {\r | |
43 | EHC_QTD *Qtd;\r | |
44 | QTD_HW *QtdHw;\r | |
45 | UINTN Index;\r | |
46 | UINTN Len;\r | |
47 | UINTN ThisBufLen;\r | |
48 | \r | |
49 | ASSERT (Ehc != NULL);\r | |
50 | \r | |
51 | Qtd = UsbHcAllocateMem (Ehc->MemPool, sizeof (EHC_QTD));\r | |
52 | \r | |
53 | if (Qtd == NULL) {\r | |
54 | return NULL;\r | |
55 | }\r | |
56 | \r | |
57 | Qtd->Signature = EHC_QTD_SIG;\r | |
58 | Qtd->Data = Data;\r | |
59 | Qtd->DataLen = 0;\r | |
60 | \r | |
61 | InitializeListHead (&Qtd->QtdList);\r | |
62 | \r | |
63 | QtdHw = &Qtd->QtdHw;\r | |
64 | QtdHw->NextQtd = QTD_LINK (NULL, TRUE);\r | |
65 | QtdHw->AltNext = QTD_LINK (NULL, TRUE);\r | |
66 | QtdHw->Status = QTD_STAT_ACTIVE;\r | |
67 | QtdHw->Pid = PktId;\r | |
68 | QtdHw->ErrCnt = QTD_MAX_ERR;\r | |
69 | QtdHw->IOC = 0;\r | |
70 | QtdHw->TotalBytes = 0;\r | |
71 | QtdHw->DataToggle = Toggle;\r | |
72 | \r | |
73 | //\r | |
74 | // Fill in the buffer points\r | |
75 | //\r | |
76 | if (Data != NULL) {\r | |
77 | Len = 0;\r | |
78 | \r | |
79 | for (Index = 0; Index <= QTD_MAX_BUFFER; Index++) {\r | |
80 | //\r | |
81 | // Set the buffer point (Check page 41 EHCI Spec 1.0). No need to\r | |
82 | // compute the offset and clear Reserved fields. This is already\r | |
83 | // done in the data point.\r | |
84 | //\r | |
85 | QtdHw->Page[Index] = EHC_LOW_32BIT (Data);\r | |
86 | QtdHw->PageHigh[Index] = EHC_HIGH_32BIT (Data);\r | |
87 | \r | |
88 | ThisBufLen = QTD_BUF_LEN - (EHC_LOW_32BIT (Data) & QTD_BUF_MASK);\r | |
89 | \r | |
90 | if (Len + ThisBufLen >= DataLen) {\r | |
91 | Len = DataLen;\r | |
92 | break;\r | |
93 | }\r | |
94 | \r | |
95 | Len += ThisBufLen;\r | |
96 | Data += ThisBufLen;\r | |
97 | }\r | |
98 | \r | |
99 | //\r | |
100 | // Need to fix the last pointer if the Qtd can't hold all the\r | |
101 | // user's data to make sure that the length is in the unit of\r | |
102 | // max packets. If it can hold all the data, there is no such\r | |
103 | // need.\r | |
104 | //\r | |
105 | if (Len < DataLen) {\r | |
106 | Len = Len - Len % MaxPacket;\r | |
107 | }\r | |
108 | \r | |
109 | QtdHw->TotalBytes = (UINT32) Len;\r | |
110 | Qtd->DataLen = Len;\r | |
111 | }\r | |
112 | \r | |
113 | return Qtd;\r | |
114 | }\r | |
115 | \r | |
116 | \r | |
117 | \r | |
118 | /**\r | |
119 | Initialize the queue head for interrupt transfer,\r | |
120 | that is, initialize the following three fields:\r | |
121 | 1. SplitXState in the Status field\r | |
122 | 2. Microframe S-mask\r | |
123 | 3. Microframe C-mask\r | |
124 | \r | |
78c2ffb5 | 125 | @param Ep The queue head's related endpoint.\r |
126 | @param QhHw The queue head to initialize.\r | |
913cb9dc | 127 | \r |
913cb9dc | 128 | **/\r |
913cb9dc | 129 | VOID\r |
130 | EhcInitIntQh (\r | |
131 | IN USB_ENDPOINT *Ep,\r | |
132 | IN QH_HW *QhHw\r | |
133 | )\r | |
134 | {\r | |
135 | //\r | |
136 | // Because UEFI interface can't utilitize an endpoint with\r | |
137 | // poll rate faster than 1ms, only need to set one bit in\r | |
138 | // the queue head. simple. But it may be changed later. If\r | |
139 | // sub-1ms interrupt is supported, need to update the S-Mask\r | |
140 | // here\r | |
141 | //\r | |
142 | if (Ep->DevSpeed == EFI_USB_SPEED_HIGH) {\r | |
143 | QhHw->SMask = QH_MICROFRAME_0;\r | |
144 | return ;\r | |
145 | }\r | |
146 | \r | |
147 | //\r | |
148 | // For low/full speed device, the transfer must go through\r | |
149 | // the split transaction. Need to update three fields\r | |
150 | // 1. SplitXState in the status\r | |
151 | // 2. Microframe S-Mask\r | |
152 | // 3. Microframe C-Mask\r | |
153 | // UEFI USB doesn't exercise admission control. It simplely\r | |
154 | // schedule the high speed transactions in microframe 0, and\r | |
155 | // full/low speed transactions at microframe 1. This also\r | |
156 | // avoid the use of FSTN.\r | |
157 | //\r | |
158 | QhHw->SMask = QH_MICROFRAME_1;\r | |
159 | QhHw->CMask = QH_MICROFRAME_3 | QH_MICROFRAME_4 | QH_MICROFRAME_5;\r | |
160 | }\r | |
161 | \r | |
162 | \r | |
163 | \r | |
164 | /**\r | |
78c2ffb5 | 165 | Allocate and initialize a EHCI queue head.\r |
913cb9dc | 166 | \r |
78c2ffb5 | 167 | @param Ehci The EHCI device.\r |
168 | @param Ep The endpoint to create queue head for.\r | |
913cb9dc | 169 | \r |
78c2ffb5 | 170 | @return Created queue head or NULL if failed to create one.\r |
913cb9dc | 171 | \r |
172 | **/\r | |
173 | EHC_QH *\r | |
174 | EhcCreateQh (\r | |
175 | IN USB2_HC_DEV *Ehci,\r | |
176 | IN USB_ENDPOINT *Ep\r | |
177 | )\r | |
178 | {\r | |
179 | EHC_QH *Qh;\r | |
180 | QH_HW *QhHw;\r | |
181 | \r | |
182 | Qh = UsbHcAllocateMem (Ehci->MemPool, sizeof (EHC_QH));\r | |
183 | \r | |
184 | if (Qh == NULL) {\r | |
185 | return NULL;\r | |
186 | }\r | |
187 | \r | |
188 | Qh->Signature = EHC_QH_SIG;\r | |
189 | Qh->NextQh = NULL;\r | |
190 | Qh->Interval = Ep->PollRate;\r | |
191 | \r | |
192 | InitializeListHead (&Qh->Qtds);\r | |
193 | \r | |
194 | QhHw = &Qh->QhHw;\r | |
195 | QhHw->HorizonLink = QH_LINK (NULL, 0, TRUE);\r | |
196 | QhHw->DeviceAddr = Ep->DevAddr;\r | |
197 | QhHw->Inactive = 0;\r | |
198 | QhHw->EpNum = Ep->EpAddr;\r | |
199 | QhHw->EpSpeed = Ep->DevSpeed;\r | |
200 | QhHw->DtCtrl = 0;\r | |
201 | QhHw->ReclaimHead = 0;\r | |
202 | QhHw->MaxPacketLen = (UINT32) Ep->MaxPacket;\r | |
203 | QhHw->CtrlEp = 0;\r | |
204 | QhHw->NakReload = QH_NAK_RELOAD;\r | |
205 | QhHw->HubAddr = Ep->HubAddr;\r | |
206 | QhHw->PortNum = Ep->HubPort;\r | |
207 | QhHw->Multiplier = 1;\r | |
208 | QhHw->DataToggle = Ep->Toggle;\r | |
209 | \r | |
210 | if (Ep->DevSpeed != EFI_USB_SPEED_HIGH) {\r | |
211 | QhHw->Status |= QTD_STAT_DO_SS;\r | |
212 | }\r | |
213 | \r | |
214 | switch (Ep->Type) {\r | |
215 | case EHC_CTRL_TRANSFER:\r | |
216 | //\r | |
217 | // Special initialization for the control transfer:\r | |
218 | // 1. Control transfer initialize data toggle from each QTD\r | |
219 | // 2. Set the Control Endpoint Flag (C) for low/full speed endpoint.\r | |
220 | //\r | |
221 | QhHw->DtCtrl = 1;\r | |
222 | \r | |
223 | if (Ep->DevSpeed != EFI_USB_SPEED_HIGH) {\r | |
224 | QhHw->CtrlEp = 1;\r | |
225 | }\r | |
226 | break;\r | |
227 | \r | |
228 | case EHC_INT_TRANSFER_ASYNC:\r | |
229 | case EHC_INT_TRANSFER_SYNC:\r | |
230 | //\r | |
231 | // Special initialization for the interrupt transfer\r | |
232 | // to set the S-Mask and C-Mask\r | |
233 | //\r | |
234 | QhHw->NakReload = 0;\r | |
235 | EhcInitIntQh (Ep, QhHw);\r | |
236 | break;\r | |
237 | \r | |
238 | case EHC_BULK_TRANSFER:\r | |
239 | if ((Ep->DevSpeed == EFI_USB_SPEED_HIGH) && (Ep->Direction == EfiUsbDataOut)) {\r | |
240 | QhHw->Status |= QTD_STAT_DO_PING;\r | |
241 | }\r | |
242 | \r | |
243 | break;\r | |
244 | }\r | |
245 | \r | |
246 | return Qh;\r | |
247 | }\r | |
248 | \r | |
249 | \r | |
913cb9dc | 250 | /**\r |
251 | Convert the poll interval from application to that\r | |
252 | be used by EHCI interface data structure. Only need\r | |
253 | to get the max 2^n that is less than interval. UEFI\r | |
254 | can't support high speed endpoint with a interval less\r | |
255 | than 8 microframe because interval is specified in\r | |
78c2ffb5 | 256 | the unit of ms (millisecond).\r |
913cb9dc | 257 | \r |
78c2ffb5 | 258 | @param Interval The interval to convert.\r |
913cb9dc | 259 | \r |
78c2ffb5 | 260 | @return The converted interval.\r |
913cb9dc | 261 | \r |
262 | **/\r | |
913cb9dc | 263 | UINTN\r |
264 | EhcConvertPollRate (\r | |
265 | IN UINTN Interval\r | |
266 | )\r | |
267 | {\r | |
268 | UINTN BitCount;\r | |
269 | \r | |
270 | if (Interval == 0) {\r | |
271 | return 1;\r | |
272 | }\r | |
273 | \r | |
274 | //\r | |
275 | // Find the index (1 based) of the highest non-zero bit\r | |
276 | //\r | |
277 | BitCount = 0;\r | |
278 | \r | |
279 | while (Interval != 0) {\r | |
280 | Interval >>= 1;\r | |
281 | BitCount++;\r | |
282 | }\r | |
283 | \r | |
db01f13e | 284 | return (UINTN)1 << (BitCount - 1);\r |
913cb9dc | 285 | }\r |
286 | \r | |
287 | \r | |
913cb9dc | 288 | /**\r |
78c2ffb5 | 289 | Free a list of QTDs.\r |
913cb9dc | 290 | \r |
78c2ffb5 | 291 | @param Ehc The EHCI device.\r |
292 | @param Qtds The list head of the QTD.\r | |
913cb9dc | 293 | \r |
913cb9dc | 294 | **/\r |
913cb9dc | 295 | VOID\r |
296 | EhcFreeQtds (\r | |
297 | IN USB2_HC_DEV *Ehc,\r | |
298 | IN LIST_ENTRY *Qtds\r | |
299 | )\r | |
300 | {\r | |
301 | LIST_ENTRY *Entry;\r | |
302 | LIST_ENTRY *Next;\r | |
303 | EHC_QTD *Qtd;\r | |
304 | \r | |
305 | EFI_LIST_FOR_EACH_SAFE (Entry, Next, Qtds) {\r | |
306 | Qtd = EFI_LIST_CONTAINER (Entry, EHC_QTD, QtdList);\r | |
307 | \r | |
308 | RemoveEntryList (&Qtd->QtdList);\r | |
309 | UsbHcFreeMem (Ehc->MemPool, Qtd, sizeof (EHC_QTD));\r | |
310 | }\r | |
311 | }\r | |
312 | \r | |
313 | \r | |
314 | /**\r | |
315 | Free an allocated URB. It is possible for it to be partially inited.\r | |
316 | \r | |
78c2ffb5 | 317 | @param Ehc The EHCI device.\r |
318 | @param Urb The URB to free.\r | |
913cb9dc | 319 | \r |
913cb9dc | 320 | **/\r |
321 | VOID\r | |
322 | EhcFreeUrb (\r | |
323 | IN USB2_HC_DEV *Ehc,\r | |
324 | IN URB *Urb\r | |
325 | )\r | |
326 | {\r | |
327 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
328 | \r | |
329 | PciIo = Ehc->PciIo;\r | |
330 | \r | |
331 | if (Urb->RequestPhy != NULL) {\r | |
332 | PciIo->Unmap (PciIo, Urb->RequestMap);\r | |
333 | }\r | |
334 | \r | |
335 | if (Urb->DataMap != NULL) {\r | |
336 | PciIo->Unmap (PciIo, Urb->DataMap);\r | |
337 | }\r | |
338 | \r | |
339 | if (Urb->Qh != NULL) {\r | |
340 | //\r | |
341 | // Ensure that this queue head has been unlinked from the\r | |
342 | // schedule data structures. Free all the associated QTDs\r | |
343 | //\r | |
344 | EhcFreeQtds (Ehc, &Urb->Qh->Qtds);\r | |
345 | UsbHcFreeMem (Ehc->MemPool, Urb->Qh, sizeof (EHC_QH));\r | |
346 | }\r | |
347 | \r | |
348 | gBS->FreePool (Urb);\r | |
349 | }\r | |
350 | \r | |
351 | \r | |
913cb9dc | 352 | /**\r |
78c2ffb5 | 353 | Create a list of QTDs for the URB.\r |
913cb9dc | 354 | \r |
78c2ffb5 | 355 | @param Ehc The EHCI device.\r |
356 | @param Urb The URB to create QTDs for.\r | |
913cb9dc | 357 | \r |
78c2ffb5 | 358 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resource for QTD.\r |
359 | @retval EFI_SUCCESS The QTDs are allocated for the URB.\r | |
913cb9dc | 360 | \r |
361 | **/\r | |
913cb9dc | 362 | EFI_STATUS\r |
363 | EhcCreateQtds (\r | |
364 | IN USB2_HC_DEV *Ehc,\r | |
365 | IN URB *Urb\r | |
366 | )\r | |
367 | {\r | |
368 | USB_ENDPOINT *Ep;\r | |
369 | EHC_QH *Qh;\r | |
370 | EHC_QTD *Qtd;\r | |
371 | EHC_QTD *StatusQtd;\r | |
372 | EHC_QTD *NextQtd;\r | |
373 | LIST_ENTRY *Entry;\r | |
374 | UINT32 AlterNext;\r | |
375 | UINT8 Toggle;\r | |
376 | UINTN Len;\r | |
377 | UINT8 Pid;\r | |
378 | \r | |
379 | ASSERT ((Urb != NULL) && (Urb->Qh != NULL));\r | |
380 | \r | |
381 | //\r | |
382 | // EHCI follows the alternet next QTD pointer if it meets\r | |
383 | // a short read and the AlterNext pointer is valid. UEFI\r | |
384 | // EHCI driver should terminate the transfer except the\r | |
385 | // control transfer.\r | |
386 | //\r | |
387 | Toggle = 0;\r | |
388 | Qh = Urb->Qh;\r | |
389 | Ep = &Urb->Ep;\r | |
390 | StatusQtd = NULL;\r | |
391 | AlterNext = QTD_LINK (NULL, TRUE);\r | |
392 | \r | |
393 | if (Ep->Direction == EfiUsbDataIn) {\r | |
394 | AlterNext = QTD_LINK (Ehc->ShortReadStop, FALSE);\r | |
395 | }\r | |
396 | \r | |
397 | //\r | |
398 | // Build the Setup and status packets for control transfer\r | |
399 | //\r | |
400 | if (Urb->Ep.Type == EHC_CTRL_TRANSFER) {\r | |
401 | Len = sizeof (EFI_USB_DEVICE_REQUEST);\r | |
402 | Qtd = EhcCreateQtd (Ehc, Urb->RequestPhy, Len, QTD_PID_SETUP, 0, Ep->MaxPacket);\r | |
403 | \r | |
404 | if (Qtd == NULL) {\r | |
405 | return EFI_OUT_OF_RESOURCES;\r | |
406 | }\r | |
407 | \r | |
408 | InsertTailList (&Qh->Qtds, &Qtd->QtdList);\r | |
409 | \r | |
410 | //\r | |
411 | // Create the status packet now. Set the AlterNext to it. So, when\r | |
412 | // EHCI meets a short control read, it can resume at the status stage.\r | |
413 | // Use the opposite direction of the data stage, or IN if there is\r | |
414 | // no data stage.\r | |
415 | //\r | |
416 | if (Ep->Direction == EfiUsbDataIn) {\r | |
417 | Pid = QTD_PID_OUTPUT;\r | |
418 | } else {\r | |
419 | Pid = QTD_PID_INPUT;\r | |
420 | }\r | |
421 | \r | |
422 | StatusQtd = EhcCreateQtd (Ehc, NULL, 0, Pid, 1, Ep->MaxPacket);\r | |
423 | \r | |
424 | if (StatusQtd == NULL) {\r | |
425 | goto ON_ERROR;\r | |
426 | }\r | |
427 | \r | |
428 | if (Ep->Direction == EfiUsbDataIn) {\r | |
429 | AlterNext = QTD_LINK (StatusQtd, FALSE);\r | |
430 | }\r | |
431 | \r | |
432 | Toggle = 1;\r | |
433 | }\r | |
434 | \r | |
435 | //\r | |
436 | // Build the data packets for all the transfers\r | |
437 | //\r | |
438 | if (Ep->Direction == EfiUsbDataIn) {\r | |
439 | Pid = QTD_PID_INPUT;\r | |
440 | } else {\r | |
441 | Pid = QTD_PID_OUTPUT;\r | |
442 | }\r | |
443 | \r | |
444 | Qtd = NULL;\r | |
445 | Len = 0;\r | |
446 | \r | |
447 | while (Len < Urb->DataLen) {\r | |
448 | Qtd = EhcCreateQtd (\r | |
449 | Ehc,\r | |
450 | (UINT8 *) Urb->DataPhy + Len,\r | |
451 | Urb->DataLen - Len,\r | |
452 | Pid,\r | |
453 | Toggle,\r | |
454 | Ep->MaxPacket\r | |
455 | );\r | |
456 | \r | |
457 | if (Qtd == NULL) {\r | |
458 | goto ON_ERROR;\r | |
459 | }\r | |
460 | \r | |
461 | Qtd->QtdHw.AltNext = AlterNext;\r | |
462 | InsertTailList (&Qh->Qtds, &Qtd->QtdList);\r | |
463 | \r | |
464 | //\r | |
465 | // Switch the Toggle bit if odd number of packets are included in the QTD.\r | |
466 | //\r | |
467 | if (((Qtd->DataLen + Ep->MaxPacket - 1) / Ep->MaxPacket) % 2) {\r | |
c52fa98c | 468 | Toggle = (UINT8) (1 - Toggle);\r |
913cb9dc | 469 | }\r |
470 | \r | |
471 | Len += Qtd->DataLen;\r | |
472 | }\r | |
473 | \r | |
474 | //\r | |
475 | // Insert the status packet for control transfer\r | |
476 | //\r | |
477 | if (Ep->Type == EHC_CTRL_TRANSFER) {\r | |
478 | InsertTailList (&Qh->Qtds, &StatusQtd->QtdList);\r | |
479 | }\r | |
480 | \r | |
481 | //\r | |
482 | // OK, all the QTDs needed are created. Now, fix the NextQtd point\r | |
483 | //\r | |
484 | EFI_LIST_FOR_EACH (Entry, &Qh->Qtds) {\r | |
485 | Qtd = EFI_LIST_CONTAINER (Entry, EHC_QTD, QtdList);\r | |
486 | \r | |
487 | //\r | |
488 | // break if it is the last entry on the list\r | |
489 | //\r | |
490 | if (Entry->ForwardLink == &Qh->Qtds) {\r | |
491 | break;\r | |
492 | }\r | |
493 | \r | |
494 | NextQtd = EFI_LIST_CONTAINER (Entry->ForwardLink, EHC_QTD, QtdList);\r | |
495 | Qtd->QtdHw.NextQtd = QTD_LINK (NextQtd, FALSE);\r | |
496 | }\r | |
497 | \r | |
498 | //\r | |
499 | // Link the QTDs to the queue head\r | |
500 | //\r | |
501 | NextQtd = EFI_LIST_CONTAINER (Qh->Qtds.ForwardLink, EHC_QTD, QtdList);\r | |
502 | Qh->QhHw.NextQtd = QTD_LINK (NextQtd, FALSE);\r | |
503 | return EFI_SUCCESS;\r | |
504 | \r | |
505 | ON_ERROR:\r | |
506 | EhcFreeQtds (Ehc, &Qh->Qtds);\r | |
507 | return EFI_OUT_OF_RESOURCES;\r | |
508 | }\r | |
509 | \r | |
510 | \r | |
511 | /**\r | |
78c2ffb5 | 512 | Create a new URB and its associated QTD.\r |
513 | \r | |
514 | @param Ehc The EHCI device.\r | |
515 | @param DevAddr The device address.\r | |
516 | @param EpAddr Endpoint addrress & its direction.\r | |
517 | @param DevSpeed The device speed.\r | |
518 | @param Toggle Initial data toggle to use.\r | |
519 | @param MaxPacket The max packet length of the endpoint.\r | |
520 | @param Hub The transaction translator to use.\r | |
521 | @param Type The transaction type.\r | |
522 | @param Request The standard USB request for control transfer.\r | |
523 | @param Data The user data to transfer.\r | |
524 | @param DataLen The length of data buffer.\r | |
525 | @param Callback The function to call when data is transferred.\r | |
526 | @param Context The context to the callback.\r | |
527 | @param Interval The interval for interrupt transfer.\r | |
528 | \r | |
529 | @return Created URB or NULL.\r | |
913cb9dc | 530 | \r |
531 | **/\r | |
532 | URB *\r | |
533 | EhcCreateUrb (\r | |
534 | IN USB2_HC_DEV *Ehc,\r | |
535 | IN UINT8 DevAddr,\r | |
536 | IN UINT8 EpAddr,\r | |
537 | IN UINT8 DevSpeed,\r | |
538 | IN UINT8 Toggle,\r | |
539 | IN UINTN MaxPacket,\r | |
540 | IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Hub,\r | |
541 | IN UINTN Type,\r | |
542 | IN EFI_USB_DEVICE_REQUEST *Request,\r | |
543 | IN VOID *Data,\r | |
544 | IN UINTN DataLen,\r | |
545 | IN EFI_ASYNC_USB_TRANSFER_CALLBACK Callback,\r | |
546 | IN VOID *Context,\r | |
547 | IN UINTN Interval\r | |
548 | )\r | |
549 | {\r | |
550 | USB_ENDPOINT *Ep;\r | |
551 | EFI_PHYSICAL_ADDRESS PhyAddr;\r | |
552 | EFI_PCI_IO_PROTOCOL_OPERATION MapOp;\r | |
553 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
554 | EFI_STATUS Status;\r | |
555 | UINTN Len;\r | |
556 | URB *Urb;\r | |
557 | VOID *Map;\r | |
558 | \r | |
559 | Urb = AllocateZeroPool (sizeof (URB));\r | |
560 | \r | |
561 | if (Urb == NULL) {\r | |
562 | return NULL;\r | |
563 | }\r | |
564 | \r | |
565 | Urb->Signature = EHC_URB_SIG;\r | |
566 | InitializeListHead (&Urb->UrbList);\r | |
567 | \r | |
568 | Ep = &Urb->Ep;\r | |
569 | Ep->DevAddr = DevAddr;\r | |
c52fa98c | 570 | Ep->EpAddr = (UINT8) (EpAddr & 0x0F);\r |
78c2ffb5 | 571 | Ep->Direction = (((EpAddr & 0x80) != 0) ? EfiUsbDataIn : EfiUsbDataOut);\r |
913cb9dc | 572 | Ep->DevSpeed = DevSpeed;\r |
573 | Ep->MaxPacket = MaxPacket;\r | |
574 | \r | |
575 | Ep->HubAddr = 0;\r | |
576 | Ep->HubPort = 0;\r | |
577 | \r | |
578 | if (DevSpeed != EFI_USB_SPEED_HIGH) {\r | |
579 | ASSERT (Hub != NULL);\r | |
580 | \r | |
581 | Ep->HubAddr = Hub->TranslatorHubAddress;\r | |
582 | Ep->HubPort = Hub->TranslatorPortNumber;\r | |
583 | }\r | |
584 | \r | |
585 | Ep->Toggle = Toggle;\r | |
586 | Ep->Type = Type;\r | |
587 | Ep->PollRate = EhcConvertPollRate (Interval);\r | |
588 | \r | |
589 | Urb->Request = Request;\r | |
590 | Urb->Data = Data;\r | |
591 | Urb->DataLen = DataLen;\r | |
592 | Urb->Callback = Callback;\r | |
593 | Urb->Context = Context;\r | |
594 | \r | |
595 | PciIo = Ehc->PciIo;\r | |
596 | Urb->Qh = EhcCreateQh (Ehc, &Urb->Ep);\r | |
597 | \r | |
598 | if (Urb->Qh == NULL) {\r | |
599 | goto ON_ERROR;\r | |
600 | }\r | |
601 | \r | |
602 | //\r | |
603 | // Map the request and user data\r | |
604 | //\r | |
605 | if (Request != NULL) {\r | |
606 | Len = sizeof (EFI_USB_DEVICE_REQUEST);\r | |
607 | MapOp = EfiPciIoOperationBusMasterRead;\r | |
608 | Status = PciIo->Map (PciIo, MapOp, Request, &Len, &PhyAddr, &Map);\r | |
609 | \r | |
610 | if (EFI_ERROR (Status) || (Len != sizeof (EFI_USB_DEVICE_REQUEST))) {\r | |
611 | goto ON_ERROR;\r | |
612 | }\r | |
613 | \r | |
614 | Urb->RequestPhy = (VOID *) ((UINTN) PhyAddr);\r | |
615 | Urb->RequestMap = Map;\r | |
616 | }\r | |
617 | \r | |
618 | if (Data != NULL) {\r | |
619 | Len = DataLen;\r | |
620 | \r | |
621 | if (Ep->Direction == EfiUsbDataIn) {\r | |
622 | MapOp = EfiPciIoOperationBusMasterWrite;\r | |
623 | } else {\r | |
624 | MapOp = EfiPciIoOperationBusMasterRead;\r | |
625 | }\r | |
626 | \r | |
627 | Status = PciIo->Map (PciIo, MapOp, Data, &Len, &PhyAddr, &Map);\r | |
628 | \r | |
629 | if (EFI_ERROR (Status) || (Len != DataLen)) {\r | |
630 | goto ON_ERROR;\r | |
631 | }\r | |
632 | \r | |
633 | Urb->DataPhy = (VOID *) ((UINTN) PhyAddr);\r | |
634 | Urb->DataMap = Map;\r | |
635 | }\r | |
636 | \r | |
637 | Status = EhcCreateQtds (Ehc, Urb);\r | |
638 | \r | |
639 | if (EFI_ERROR (Status)) {\r | |
640 | goto ON_ERROR;\r | |
641 | }\r | |
642 | \r | |
643 | return Urb;\r | |
644 | \r | |
645 | ON_ERROR:\r | |
646 | EhcFreeUrb (Ehc, Urb);\r | |
647 | return NULL;\r | |
648 | }\r |