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4b1bf81c | 1 | /** @file\r |
2 | Usb Hub Request Support In PEI Phase\r | |
3 | \r | |
72750e3b | 4 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r |
d1102dba | 5 | \r |
4b1bf81c | 6 | This program and the accompanying materials\r |
7 | are licensed and made available under the terms and conditions\r | |
8 | of the BSD License which accompanies this distribution. The\r | |
9 | 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 | |
15 | **/\r | |
16 | \r | |
17 | #include "UsbPeim.h"\r | |
18 | #include "HubPeim.h"\r | |
19 | #include "PeiUsbLib.h"\r | |
20 | \r | |
21 | /**\r | |
22 | Get a given hub port status.\r | |
23 | \r | |
24 | @param PeiServices General-purpose services that are available to every PEIM.\r | |
25 | @param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.\r | |
26 | @param Port Usb hub port number (starting from 1).\r | |
27 | @param PortStatus Current Hub port status and change status.\r | |
28 | \r | |
29 | @retval EFI_SUCCESS Port status is obtained successfully.\r | |
30 | @retval EFI_DEVICE_ERROR Cannot get the port status due to a hardware error.\r | |
31 | @retval Others Other failure occurs.\r | |
32 | \r | |
33 | **/\r | |
34 | EFI_STATUS\r | |
35 | PeiHubGetPortStatus (\r | |
36 | IN EFI_PEI_SERVICES **PeiServices,\r | |
37 | IN PEI_USB_IO_PPI *UsbIoPpi,\r | |
38 | IN UINT8 Port,\r | |
39 | OUT UINT32 *PortStatus\r | |
40 | )\r | |
41 | {\r | |
42 | EFI_USB_DEVICE_REQUEST DeviceRequest;\r | |
43 | \r | |
44 | ZeroMem (&DeviceRequest, sizeof (EFI_USB_DEVICE_REQUEST));\r | |
45 | \r | |
46 | //\r | |
47 | // Fill Device request packet\r | |
48 | //\r | |
49 | DeviceRequest.RequestType = USB_HUB_GET_PORT_STATUS_REQ_TYPE;\r | |
50 | DeviceRequest.Request = USB_HUB_GET_PORT_STATUS;\r | |
51 | DeviceRequest.Index = Port;\r | |
52 | DeviceRequest.Length = (UINT16) sizeof (UINT32);\r | |
53 | \r | |
54 | \r | |
55 | return UsbIoPpi->UsbControlTransfer (\r | |
56 | PeiServices,\r | |
57 | UsbIoPpi,\r | |
58 | &DeviceRequest,\r | |
59 | EfiUsbDataIn,\r | |
60 | PcdGet32 (PcdUsbTransferTimeoutValue),\r | |
61 | PortStatus,\r | |
62 | sizeof (UINT32)\r | |
63 | );\r | |
64 | \r | |
65 | }\r | |
66 | \r | |
67 | /**\r | |
68 | Set specified feature to a given hub port.\r | |
69 | \r | |
70 | @param PeiServices General-purpose services that are available to every PEIM.\r | |
71 | @param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.\r | |
72 | @param Port Usb hub port number (starting from 1).\r | |
73 | @param Value New feature value.\r | |
74 | \r | |
75 | @retval EFI_SUCCESS Port feature is set successfully.\r | |
76 | @retval EFI_DEVICE_ERROR Cannot set the port feature due to a hardware error.\r | |
77 | @retval Others Other failure occurs.\r | |
78 | \r | |
79 | **/\r | |
80 | EFI_STATUS\r | |
81 | PeiHubSetPortFeature (\r | |
82 | IN EFI_PEI_SERVICES **PeiServices,\r | |
83 | IN PEI_USB_IO_PPI *UsbIoPpi,\r | |
84 | IN UINT8 Port,\r | |
85 | IN UINT8 Value\r | |
86 | )\r | |
87 | {\r | |
88 | EFI_USB_DEVICE_REQUEST DeviceRequest;\r | |
89 | \r | |
90 | ZeroMem (&DeviceRequest, sizeof (EFI_USB_DEVICE_REQUEST));\r | |
91 | \r | |
92 | //\r | |
93 | // Fill Device request packet\r | |
94 | //\r | |
95 | DeviceRequest.RequestType = USB_HUB_SET_PORT_FEATURE_REQ_TYPE;\r | |
96 | DeviceRequest.Request = USB_HUB_SET_PORT_FEATURE;\r | |
97 | DeviceRequest.Value = Value;\r | |
98 | DeviceRequest.Index = Port;\r | |
99 | \r | |
100 | return UsbIoPpi->UsbControlTransfer (\r | |
101 | PeiServices,\r | |
102 | UsbIoPpi,\r | |
103 | &DeviceRequest,\r | |
104 | EfiUsbNoData,\r | |
105 | PcdGet32 (PcdUsbTransferTimeoutValue),\r | |
106 | NULL,\r | |
107 | 0\r | |
108 | );\r | |
109 | }\r | |
110 | \r | |
111 | /**\r | |
112 | Clear specified feature on a given hub port.\r | |
113 | \r | |
114 | @param PeiServices General-purpose services that are available to every PEIM.\r | |
115 | @param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.\r | |
116 | @param Port Usb hub port number (starting from 1).\r | |
117 | @param Value Feature value that will be cleared from the hub port.\r | |
118 | \r | |
119 | @retval EFI_SUCCESS Port feature is cleared successfully.\r | |
120 | @retval EFI_DEVICE_ERROR Cannot clear the port feature due to a hardware error.\r | |
121 | @retval Others Other failure occurs.\r | |
122 | \r | |
123 | **/\r | |
124 | EFI_STATUS\r | |
125 | PeiHubClearPortFeature (\r | |
126 | IN EFI_PEI_SERVICES **PeiServices,\r | |
127 | IN PEI_USB_IO_PPI *UsbIoPpi,\r | |
128 | IN UINT8 Port,\r | |
129 | IN UINT8 Value\r | |
130 | )\r | |
131 | {\r | |
132 | EFI_USB_DEVICE_REQUEST DeviceRequest;\r | |
133 | \r | |
134 | ZeroMem (&DeviceRequest, sizeof (EFI_USB_DEVICE_REQUEST));\r | |
135 | \r | |
136 | //\r | |
137 | // Fill Device request packet\r | |
138 | //\r | |
139 | DeviceRequest.RequestType = USB_HUB_CLEAR_FEATURE_PORT_REQ_TYPE;\r | |
140 | DeviceRequest.Request = USB_HUB_CLEAR_FEATURE_PORT;\r | |
141 | DeviceRequest.Value = Value;\r | |
142 | DeviceRequest.Index = Port;\r | |
143 | \r | |
144 | return UsbIoPpi->UsbControlTransfer (\r | |
145 | PeiServices,\r | |
146 | UsbIoPpi,\r | |
147 | &DeviceRequest,\r | |
148 | EfiUsbNoData,\r | |
149 | PcdGet32 (PcdUsbTransferTimeoutValue),\r | |
150 | NULL,\r | |
151 | 0\r | |
152 | );\r | |
153 | }\r | |
154 | \r | |
155 | /**\r | |
156 | Get a given hub status.\r | |
157 | \r | |
158 | @param PeiServices General-purpose services that are available to every PEIM.\r | |
159 | @param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.\r | |
160 | @param HubStatus Current Hub status and change status.\r | |
161 | \r | |
162 | @retval EFI_SUCCESS Hub status is obtained successfully.\r | |
163 | @retval EFI_DEVICE_ERROR Cannot get the hub status due to a hardware error.\r | |
164 | @retval Others Other failure occurs.\r | |
165 | \r | |
166 | **/\r | |
167 | EFI_STATUS\r | |
168 | PeiHubGetHubStatus (\r | |
169 | IN EFI_PEI_SERVICES **PeiServices,\r | |
170 | IN PEI_USB_IO_PPI *UsbIoPpi,\r | |
171 | OUT UINT32 *HubStatus\r | |
172 | )\r | |
173 | {\r | |
174 | EFI_USB_DEVICE_REQUEST DeviceRequest;\r | |
175 | \r | |
176 | ZeroMem (&DeviceRequest, sizeof (EFI_USB_DEVICE_REQUEST));\r | |
177 | \r | |
178 | //\r | |
179 | // Fill Device request packet\r | |
180 | //\r | |
181 | DeviceRequest.RequestType = USB_HUB_GET_HUB_STATUS_REQ_TYPE;\r | |
182 | DeviceRequest.Request = USB_HUB_GET_HUB_STATUS;\r | |
183 | DeviceRequest.Length = (UINT16) sizeof (UINT32);\r | |
184 | \r | |
185 | return UsbIoPpi->UsbControlTransfer (\r | |
186 | PeiServices,\r | |
187 | UsbIoPpi,\r | |
188 | &DeviceRequest,\r | |
189 | EfiUsbDataIn,\r | |
190 | PcdGet32 (PcdUsbTransferTimeoutValue),\r | |
191 | HubStatus,\r | |
192 | sizeof (UINT32)\r | |
193 | );\r | |
194 | }\r | |
195 | \r | |
196 | /**\r | |
197 | Set specified feature to a given hub.\r | |
198 | \r | |
199 | @param PeiServices General-purpose services that are available to every PEIM.\r | |
200 | @param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.\r | |
201 | @param Value New feature value.\r | |
202 | \r | |
203 | @retval EFI_SUCCESS Port feature is set successfully.\r | |
204 | @retval EFI_DEVICE_ERROR Cannot set the port feature due to a hardware error.\r | |
205 | @retval Others Other failure occurs.\r | |
206 | \r | |
207 | **/\r | |
208 | EFI_STATUS\r | |
209 | PeiHubSetHubFeature (\r | |
210 | IN EFI_PEI_SERVICES **PeiServices,\r | |
211 | IN PEI_USB_IO_PPI *UsbIoPpi,\r | |
212 | IN UINT8 Value\r | |
213 | )\r | |
214 | {\r | |
215 | EFI_USB_DEVICE_REQUEST DeviceRequest;\r | |
216 | \r | |
217 | ZeroMem (&DeviceRequest, sizeof (EFI_USB_DEVICE_REQUEST));\r | |
218 | \r | |
219 | //\r | |
220 | // Fill Device request packet\r | |
221 | //\r | |
222 | DeviceRequest.RequestType = USB_HUB_SET_HUB_FEATURE_REQ_TYPE;\r | |
223 | DeviceRequest.Request = USB_HUB_SET_HUB_FEATURE;\r | |
224 | DeviceRequest.Value = Value;\r | |
225 | \r | |
226 | return UsbIoPpi->UsbControlTransfer (\r | |
227 | PeiServices,\r | |
228 | UsbIoPpi,\r | |
229 | &DeviceRequest,\r | |
230 | EfiUsbNoData,\r | |
231 | PcdGet32 (PcdUsbTransferTimeoutValue),\r | |
232 | NULL,\r | |
233 | 0\r | |
234 | );\r | |
235 | }\r | |
236 | \r | |
237 | /**\r | |
238 | Clear specified feature on a given hub.\r | |
239 | \r | |
240 | @param PeiServices General-purpose services that are available to every PEIM.\r | |
241 | @param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.\r | |
242 | @param Value Feature value that will be cleared from the hub port.\r | |
243 | \r | |
244 | @retval EFI_SUCCESS Hub feature is cleared successfully.\r | |
245 | @retval EFI_DEVICE_ERROR Cannot clear the hub feature due to a hardware error.\r | |
246 | @retval Others Other failure occurs.\r | |
247 | \r | |
248 | **/\r | |
249 | EFI_STATUS\r | |
250 | PeiHubClearHubFeature (\r | |
251 | IN EFI_PEI_SERVICES **PeiServices,\r | |
252 | IN PEI_USB_IO_PPI *UsbIoPpi,\r | |
253 | IN UINT8 Value\r | |
254 | )\r | |
255 | {\r | |
256 | EFI_USB_DEVICE_REQUEST DeviceRequest;\r | |
257 | \r | |
258 | ZeroMem (&DeviceRequest, sizeof (EFI_USB_DEVICE_REQUEST));\r | |
259 | \r | |
260 | //\r | |
261 | // Fill Device request packet\r | |
262 | //\r | |
263 | DeviceRequest.RequestType = USB_HUB_CLEAR_FEATURE_REQ_TYPE;\r | |
264 | DeviceRequest.Request = USB_HUB_CLEAR_FEATURE;\r | |
265 | DeviceRequest.Value = Value;\r | |
266 | \r | |
267 | return UsbIoPpi->UsbControlTransfer (\r | |
268 | PeiServices,\r | |
269 | UsbIoPpi,\r | |
270 | &DeviceRequest,\r | |
271 | EfiUsbNoData,\r | |
272 | PcdGet32 (PcdUsbTransferTimeoutValue),\r | |
273 | NULL,\r | |
274 | 0\r | |
275 | );\r | |
276 | }\r | |
277 | \r | |
278 | /**\r | |
72750e3b | 279 | Get a given (SuperSpeed) hub descriptor.\r |
4b1bf81c | 280 | \r |
281 | @param PeiServices General-purpose services that are available to every PEIM.\r | |
72750e3b | 282 | @param PeiUsbDevice Indicates the hub controller device.\r |
4b1bf81c | 283 | @param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.\r |
284 | @param DescriptorSize The length of Hub Descriptor buffer.\r | |
285 | @param HubDescriptor Caller allocated buffer to store the hub descriptor if\r | |
286 | successfully returned.\r | |
287 | \r | |
288 | @retval EFI_SUCCESS Hub descriptor is obtained successfully.\r | |
289 | @retval EFI_DEVICE_ERROR Cannot get the hub descriptor due to a hardware error.\r | |
290 | @retval Others Other failure occurs.\r | |
291 | \r | |
292 | **/\r | |
293 | EFI_STATUS\r | |
294 | PeiGetHubDescriptor (\r | |
295 | IN EFI_PEI_SERVICES **PeiServices,\r | |
72750e3b | 296 | IN PEI_USB_DEVICE *PeiUsbDevice,\r |
4b1bf81c | 297 | IN PEI_USB_IO_PPI *UsbIoPpi,\r |
298 | IN UINTN DescriptorSize,\r | |
299 | OUT EFI_USB_HUB_DESCRIPTOR *HubDescriptor\r | |
300 | )\r | |
301 | {\r | |
302 | EFI_USB_DEVICE_REQUEST DevReq;\r | |
72750e3b | 303 | UINT8 DescType;\r |
d987459f | 304 | \r |
d987459f SZ |
305 | ZeroMem (&DevReq, sizeof (EFI_USB_DEVICE_REQUEST));\r |
306 | \r | |
72750e3b SZ |
307 | DescType = (PeiUsbDevice->DeviceSpeed == EFI_USB_SPEED_SUPER) ?\r |
308 | USB_DT_SUPERSPEED_HUB :\r | |
309 | USB_DT_HUB;\r | |
310 | \r | |
d987459f SZ |
311 | //\r |
312 | // Fill Device request packet\r | |
313 | //\r | |
314 | DevReq.RequestType = USB_RT_HUB | 0x80;\r | |
315 | DevReq.Request = USB_HUB_GET_DESCRIPTOR;\r | |
72750e3b SZ |
316 | DevReq.Value = (UINT16) (DescType << 8);\r |
317 | DevReq.Length = (UINT16) DescriptorSize;\r | |
d987459f SZ |
318 | \r |
319 | return UsbIoPpi->UsbControlTransfer (\r | |
320 | PeiServices,\r | |
321 | UsbIoPpi,\r | |
322 | &DevReq,\r | |
323 | EfiUsbDataIn,\r | |
324 | PcdGet32 (PcdUsbTransferTimeoutValue),\r | |
325 | HubDescriptor,\r | |
72750e3b | 326 | (UINT16)DescriptorSize\r |
d987459f SZ |
327 | );\r |
328 | }\r | |
329 | \r | |
330 | /**\r | |
331 | Read the whole usb hub descriptor. It is necessary\r | |
332 | to do it in two steps because hub descriptor is of\r | |
333 | variable length.\r | |
334 | \r | |
335 | @param PeiServices General-purpose services that are available to every PEIM.\r | |
336 | @param PeiUsbDevice Indicates the hub controller device.\r | |
337 | @param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.\r | |
338 | @param HubDescriptor Caller allocated buffer to store the hub descriptor if\r | |
339 | successfully returned.\r | |
340 | \r | |
341 | @retval EFI_SUCCESS Hub descriptor is obtained successfully.\r | |
342 | @retval EFI_DEVICE_ERROR Cannot get the hub descriptor due to a hardware error.\r | |
343 | @retval Others Other failure occurs.\r | |
344 | \r | |
345 | **/\r | |
346 | EFI_STATUS\r | |
347 | PeiUsbHubReadDesc (\r | |
348 | IN EFI_PEI_SERVICES **PeiServices,\r | |
349 | IN PEI_USB_DEVICE *PeiUsbDevice,\r | |
350 | IN PEI_USB_IO_PPI *UsbIoPpi,\r | |
351 | OUT EFI_USB_HUB_DESCRIPTOR *HubDescriptor\r | |
352 | )\r | |
353 | {\r | |
354 | EFI_STATUS Status;\r | |
355 | \r | |
72750e3b SZ |
356 | //\r |
357 | // First get the hub descriptor length\r | |
358 | //\r | |
359 | Status = PeiGetHubDescriptor (PeiServices, PeiUsbDevice, UsbIoPpi, 2, HubDescriptor);\r | |
d987459f | 360 | \r |
72750e3b SZ |
361 | if (EFI_ERROR (Status)) {\r |
362 | return Status;\r | |
d987459f SZ |
363 | }\r |
364 | \r | |
72750e3b SZ |
365 | //\r |
366 | // Get the whole hub descriptor\r | |
367 | //\r | |
368 | return PeiGetHubDescriptor (PeiServices, PeiUsbDevice, UsbIoPpi, HubDescriptor->Length, HubDescriptor);\r | |
d987459f SZ |
369 | }\r |
370 | \r | |
371 | /**\r | |
372 | USB hub control transfer to set the hub depth.\r | |
373 | \r | |
374 | @param PeiServices General-purpose services that are available to every PEIM.\r | |
375 | @param PeiUsbDevice Indicates the hub controller device.\r | |
376 | @param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.\r | |
377 | \r | |
378 | @retval EFI_SUCCESS Depth of the hub is set.\r | |
379 | @retval Others Failed to set the depth.\r | |
380 | \r | |
381 | **/\r | |
382 | EFI_STATUS\r | |
383 | PeiUsbHubCtrlSetHubDepth (\r | |
384 | IN EFI_PEI_SERVICES **PeiServices,\r | |
385 | IN PEI_USB_DEVICE *PeiUsbDevice,\r | |
386 | IN PEI_USB_IO_PPI *UsbIoPpi\r | |
387 | )\r | |
388 | {\r | |
389 | EFI_USB_DEVICE_REQUEST DevReq;\r | |
390 | ZeroMem (&DevReq, sizeof (EFI_USB_DEVICE_REQUEST));\r | |
391 | \r | |
392 | //\r | |
393 | // Fill Device request packet\r | |
394 | //\r | |
395 | DevReq.RequestType = USB_RT_HUB;\r | |
396 | DevReq.Request = USB_HUB_REQ_SET_DEPTH;\r | |
397 | DevReq.Value = PeiUsbDevice->Tier;\r | |
398 | DevReq.Length = 0;\r | |
399 | \r | |
400 | return UsbIoPpi->UsbControlTransfer (\r | |
401 | PeiServices,\r | |
402 | UsbIoPpi,\r | |
403 | &DevReq,\r | |
404 | EfiUsbNoData,\r | |
405 | PcdGet32 (PcdUsbTransferTimeoutValue),\r | |
406 | NULL,\r | |
407 | 0\r | |
408 | );\r | |
409 | }\r | |
410 | \r | |
4b1bf81c | 411 | /**\r |
412 | Configure a given hub.\r | |
413 | \r | |
414 | @param PeiServices General-purpose services that are available to every PEIM.\r | |
415 | @param PeiUsbDevice Indicating the hub controller device that will be configured\r | |
416 | \r | |
417 | @retval EFI_SUCCESS Hub configuration is done successfully.\r | |
418 | @retval EFI_DEVICE_ERROR Cannot configure the hub due to a hardware error.\r | |
419 | \r | |
420 | **/\r | |
421 | EFI_STATUS\r | |
422 | PeiDoHubConfig (\r | |
423 | IN EFI_PEI_SERVICES **PeiServices,\r | |
424 | IN PEI_USB_DEVICE *PeiUsbDevice\r | |
425 | )\r | |
426 | {\r | |
72750e3b SZ |
427 | UINT8 HubDescBuffer[256];\r |
428 | EFI_USB_HUB_DESCRIPTOR *HubDescriptor;\r | |
4b1bf81c | 429 | EFI_STATUS Status;\r |
430 | EFI_USB_HUB_STATUS HubStatus;\r | |
431 | UINTN Index;\r | |
4b1bf81c | 432 | PEI_USB_IO_PPI *UsbIoPpi;\r |
433 | \r | |
4b1bf81c | 434 | UsbIoPpi = &PeiUsbDevice->UsbIoPpi;\r |
435 | \r | |
72750e3b SZ |
436 | //\r |
437 | // The length field of descriptor is UINT8 type, so the buffer\r | |
438 | // with 256 bytes is enough to hold the descriptor data.\r | |
439 | //\r | |
440 | HubDescriptor = (EFI_USB_HUB_DESCRIPTOR *) HubDescBuffer;\r | |
441 | \r | |
4b1bf81c | 442 | //\r |
d1102dba | 443 | // Get the hub descriptor\r |
4b1bf81c | 444 | //\r |
d987459f | 445 | Status = PeiUsbHubReadDesc (\r |
4b1bf81c | 446 | PeiServices,\r |
d987459f | 447 | PeiUsbDevice,\r |
4b1bf81c | 448 | UsbIoPpi,\r |
72750e3b | 449 | HubDescriptor\r |
4b1bf81c | 450 | );\r |
451 | if (EFI_ERROR (Status)) {\r | |
452 | return EFI_DEVICE_ERROR;\r | |
453 | }\r | |
454 | \r | |
72750e3b | 455 | PeiUsbDevice->DownStreamPortNo = HubDescriptor->NbrPorts;\r |
4b1bf81c | 456 | \r |
d987459f SZ |
457 | if (PeiUsbDevice->DeviceSpeed == EFI_USB_SPEED_SUPER) {\r |
458 | DEBUG ((EFI_D_INFO, "PeiDoHubConfig: Set Hub Depth as 0x%x\n", PeiUsbDevice->Tier));\r | |
459 | PeiUsbHubCtrlSetHubDepth (\r | |
460 | PeiServices,\r | |
461 | PeiUsbDevice,\r | |
462 | UsbIoPpi\r | |
463 | );\r | |
4b1bf81c | 464 | } else {\r |
465 | //\r | |
d987459f | 466 | // Power all the hub ports\r |
4b1bf81c | 467 | //\r |
d987459f SZ |
468 | for (Index = 0; Index < PeiUsbDevice->DownStreamPortNo; Index++) {\r |
469 | Status = PeiHubSetPortFeature (\r | |
470 | PeiServices,\r | |
471 | UsbIoPpi,\r | |
472 | (UINT8) (Index + 1),\r | |
473 | EfiUsbPortPower\r | |
474 | );\r | |
475 | if (EFI_ERROR (Status)) {\r | |
476 | DEBUG (( EFI_D_ERROR, "PeiDoHubConfig: PeiHubSetPortFeature EfiUsbPortPower failed %x\n", Index));\r | |
477 | continue;\r | |
478 | }\r | |
4b1bf81c | 479 | }\r |
d987459f | 480 | \r |
72750e3b SZ |
481 | DEBUG (( EFI_D_INFO, "PeiDoHubConfig: HubDescriptor.PwrOn2PwrGood: 0x%x\n", HubDescriptor->PwrOn2PwrGood));\r |
482 | if (HubDescriptor->PwrOn2PwrGood > 0) {\r | |
483 | MicroSecondDelay (HubDescriptor->PwrOn2PwrGood * USB_SET_PORT_POWER_STALL);\r | |
d987459f SZ |
484 | }\r |
485 | \r | |
4b1bf81c | 486 | //\r |
d987459f | 487 | // Clear Hub Status Change\r |
4b1bf81c | 488 | //\r |
d987459f SZ |
489 | Status = PeiHubGetHubStatus (\r |
490 | PeiServices,\r | |
491 | UsbIoPpi,\r | |
492 | (UINT32 *) &HubStatus\r | |
493 | );\r | |
494 | if (EFI_ERROR (Status)) {\r | |
495 | return EFI_DEVICE_ERROR;\r | |
496 | } else {\r | |
497 | //\r | |
498 | // Hub power supply change happens\r | |
499 | //\r | |
500 | if ((HubStatus.HubChangeStatus & HUB_CHANGE_LOCAL_POWER) != 0) {\r | |
501 | PeiHubClearHubFeature (\r | |
502 | PeiServices,\r | |
503 | UsbIoPpi,\r | |
504 | C_HUB_LOCAL_POWER\r | |
505 | );\r | |
506 | }\r | |
507 | //\r | |
508 | // Hub change overcurrent happens\r | |
509 | //\r | |
510 | if ((HubStatus.HubChangeStatus & HUB_CHANGE_OVERCURRENT) != 0) {\r | |
511 | PeiHubClearHubFeature (\r | |
512 | PeiServices,\r | |
513 | UsbIoPpi,\r | |
514 | C_HUB_OVER_CURRENT\r | |
515 | );\r | |
516 | }\r | |
4b1bf81c | 517 | }\r |
518 | }\r | |
519 | \r | |
520 | return EFI_SUCCESS;\r | |
521 | }\r | |
522 | \r | |
523 | /**\r | |
524 | Send reset signal over the given root hub port.\r | |
525 | \r | |
526 | @param PeiServices General-purpose services that are available to every PEIM.\r | |
527 | @param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.\r | |
528 | @param PortNum Usb hub port number (starting from 1).\r | |
529 | \r | |
530 | **/\r | |
531 | VOID\r | |
532 | PeiResetHubPort (\r | |
533 | IN EFI_PEI_SERVICES **PeiServices,\r | |
534 | IN PEI_USB_IO_PPI *UsbIoPpi,\r | |
535 | IN UINT8 PortNum\r | |
536 | )\r | |
537 | {\r | |
d987459f SZ |
538 | EFI_STATUS Status;\r |
539 | UINTN Index;\r | |
4b1bf81c | 540 | EFI_USB_PORT_STATUS HubPortStatus;\r |
541 | \r | |
4b1bf81c | 542 | MicroSecondDelay (100 * 1000);\r |
543 | \r | |
544 | //\r | |
545 | // reset root port\r | |
546 | //\r | |
547 | PeiHubSetPortFeature (\r | |
548 | PeiServices,\r | |
549 | UsbIoPpi,\r | |
550 | PortNum,\r | |
551 | EfiUsbPortReset\r | |
552 | );\r | |
553 | \r | |
d987459f SZ |
554 | //\r |
555 | // Drive the reset signal for worst 20ms. Check USB 2.0 Spec\r | |
556 | // section 7.1.7.5 for timing requirements.\r | |
557 | //\r | |
558 | MicroSecondDelay (USB_SET_PORT_RESET_STALL);\r | |
4b1bf81c | 559 | \r |
d987459f SZ |
560 | //\r |
561 | // Check USB_PORT_STAT_C_RESET bit to see if the resetting state is done.\r | |
562 | //\r | |
563 | ZeroMem (&HubPortStatus, sizeof (EFI_USB_PORT_STATUS));\r | |
564 | \r | |
565 | for (Index = 0; Index < USB_WAIT_PORT_STS_CHANGE_LOOP; Index++) {\r | |
566 | Status = PeiHubGetPortStatus (\r | |
567 | PeiServices,\r | |
568 | UsbIoPpi,\r | |
569 | PortNum,\r | |
570 | (UINT32 *) &HubPortStatus\r | |
571 | );\r | |
572 | \r | |
573 | if (EFI_ERROR (Status)) {\r | |
574 | return;\r | |
575 | }\r | |
576 | \r | |
577 | if (USB_BIT_IS_SET (HubPortStatus.PortChangeStatus, USB_PORT_STAT_C_RESET)) {\r | |
578 | break;\r | |
579 | }\r | |
580 | \r | |
581 | MicroSecondDelay (USB_WAIT_PORT_STS_CHANGE_STALL);\r | |
582 | }\r | |
583 | \r | |
584 | if (Index == USB_WAIT_PORT_STS_CHANGE_LOOP) {\r | |
585 | DEBUG ((EFI_D_ERROR, "PeiResetHubPort: reset not finished in time on port %d\n", PortNum));\r | |
586 | return;\r | |
587 | }\r | |
4b1bf81c | 588 | \r |
589 | //\r | |
d987459f | 590 | // clear reset change root port\r |
4b1bf81c | 591 | //\r |
592 | PeiHubClearPortFeature (\r | |
593 | PeiServices,\r | |
594 | UsbIoPpi,\r | |
595 | PortNum,\r | |
d987459f | 596 | EfiUsbPortResetChange\r |
4b1bf81c | 597 | );\r |
598 | \r | |
599 | MicroSecondDelay (1 * 1000);\r | |
600 | \r | |
601 | PeiHubClearPortFeature (\r | |
602 | PeiServices,\r | |
603 | UsbIoPpi,\r | |
604 | PortNum,\r | |
605 | EfiUsbPortConnectChange\r | |
606 | );\r | |
607 | \r | |
608 | //\r | |
609 | // Set port enable\r | |
610 | //\r | |
611 | PeiHubSetPortFeature (\r | |
612 | PeiServices,\r | |
613 | UsbIoPpi,\r | |
614 | PortNum,\r | |
615 | EfiUsbPortEnable\r | |
616 | );\r | |
617 | \r | |
618 | //\r | |
619 | // Clear any change status\r | |
620 | //\r | |
621 | \r | |
622 | PeiHubClearPortFeature (\r | |
623 | PeiServices,\r | |
624 | UsbIoPpi,\r | |
625 | PortNum,\r | |
626 | EfiUsbPortEnableChange\r | |
627 | );\r | |
628 | \r | |
629 | MicroSecondDelay (10 * 1000);\r | |
630 | \r | |
631 | return;\r | |
632 | }\r |