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ba19956a | 1 | /** @file \r |
78c2ffb5 | 2 | The Ehci controller driver.\r |
913cb9dc | 3 | \r |
ba19956a | 4 | EhciDxe driver is responsible for managing the behavior of EHCI controller. \r |
5 | It implements the interfaces of monitoring the status of all ports and transferring \r | |
6 | Control, Bulk, Interrupt and Isochronous requests to Usb2.0 device.\r | |
7 | \r | |
8 | Note that EhciDxe driver is enhanced to guarantee that the EHCI controller get attached\r | |
9 | to the EHCI controller before the UHCI driver attaches to the companion UHCI controller. \r | |
10 | This way avoids the control transfer on a shared port between EHCI and companion host\r | |
11 | controller when UHCI gets attached earlier than EHCI and a USB 2.0 device inserts.\r | |
12 | \r | |
db0f0d3c | 13 | Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>\r |
cd5ebaa0 | 14 | This program and the accompanying materials\r |
913cb9dc | 15 | are licensed and made available under the terms and conditions of the BSD License\r |
16 | which accompanies this distribution. The full text of the license may be found at\r | |
17 | http://opensource.org/licenses/bsd-license.php\r | |
18 | \r | |
19 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
20 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
21 | \r | |
913cb9dc | 22 | **/\r |
23 | \r | |
24 | \r | |
25 | #include "Ehci.h"\r | |
26 | \r | |
27 | //\r | |
28 | // Two arrays used to translate the EHCI port state (change)\r | |
29 | // to the UEFI protocol's port state (change).\r | |
30 | //\r | |
31 | USB_PORT_STATE_MAP mUsbPortStateMap[] = {\r | |
32 | {PORTSC_CONN, USB_PORT_STAT_CONNECTION},\r | |
33 | {PORTSC_ENABLED, USB_PORT_STAT_ENABLE},\r | |
34 | {PORTSC_SUSPEND, USB_PORT_STAT_SUSPEND},\r | |
35 | {PORTSC_OVERCUR, USB_PORT_STAT_OVERCURRENT},\r | |
36 | {PORTSC_RESET, USB_PORT_STAT_RESET},\r | |
37 | {PORTSC_POWER, USB_PORT_STAT_POWER},\r | |
38 | {PORTSC_OWNER, USB_PORT_STAT_OWNER}\r | |
39 | };\r | |
40 | \r | |
41 | USB_PORT_STATE_MAP mUsbPortChangeMap[] = {\r | |
42 | {PORTSC_CONN_CHANGE, USB_PORT_STAT_C_CONNECTION},\r | |
43 | {PORTSC_ENABLE_CHANGE, USB_PORT_STAT_C_ENABLE},\r | |
44 | {PORTSC_OVERCUR_CHANGE, USB_PORT_STAT_C_OVERCURRENT}\r | |
45 | };\r | |
46 | \r | |
aa79b0b3 | 47 | EFI_DRIVER_BINDING_PROTOCOL\r |
48 | gEhciDriverBinding = {\r | |
49 | EhcDriverBindingSupported,\r | |
50 | EhcDriverBindingStart,\r | |
51 | EhcDriverBindingStop,\r | |
cd92e3fb | 52 | 0x30,\r |
aa79b0b3 | 53 | NULL,\r |
54 | NULL\r | |
55 | };\r | |
913cb9dc | 56 | \r |
57 | /**\r | |
5f8be012 | 58 | Retrieves the capability of root hub ports.\r |
913cb9dc | 59 | \r |
78c2ffb5 | 60 | @param This This EFI_USB_HC_PROTOCOL instance.\r |
61 | @param MaxSpeed Max speed supported by the controller.\r | |
62 | @param PortNumber Number of the root hub ports.\r | |
63 | @param Is64BitCapable Whether the controller supports 64-bit memory\r | |
64 | addressing.\r | |
913cb9dc | 65 | \r |
78c2ffb5 | 66 | @retval EFI_SUCCESS Host controller capability were retrieved successfully.\r |
67 | @retval EFI_INVALID_PARAMETER Either of the three capability pointer is NULL.\r | |
913cb9dc | 68 | \r |
69 | **/\r | |
913cb9dc | 70 | EFI_STATUS\r |
71 | EFIAPI\r | |
72 | EhcGetCapability (\r | |
73 | IN EFI_USB2_HC_PROTOCOL *This,\r | |
74 | OUT UINT8 *MaxSpeed,\r | |
75 | OUT UINT8 *PortNumber,\r | |
76 | OUT UINT8 *Is64BitCapable\r | |
77 | )\r | |
78 | {\r | |
79 | USB2_HC_DEV *Ehc;\r | |
80 | EFI_TPL OldTpl;\r | |
81 | \r | |
82 | if ((MaxSpeed == NULL) || (PortNumber == NULL) || (Is64BitCapable == NULL)) {\r | |
83 | return EFI_INVALID_PARAMETER;\r | |
84 | }\r | |
85 | \r | |
86 | OldTpl = gBS->RaiseTPL (EHC_TPL);\r | |
87 | Ehc = EHC_FROM_THIS (This);\r | |
88 | \r | |
89 | *MaxSpeed = EFI_USB_SPEED_HIGH;\r | |
90 | *PortNumber = (UINT8) (Ehc->HcStructParams & HCSP_NPORTS);\r | |
91 | *Is64BitCapable = (UINT8) (Ehc->HcCapParams & HCCP_64BIT);\r | |
92 | \r | |
1c619535 | 93 | DEBUG ((EFI_D_INFO, "EhcGetCapability: %d ports, 64 bit %d\n", *PortNumber, *Is64BitCapable));\r |
913cb9dc | 94 | \r |
95 | gBS->RestoreTPL (OldTpl);\r | |
96 | return EFI_SUCCESS;\r | |
97 | }\r | |
98 | \r | |
99 | \r | |
100 | /**\r | |
101 | Provides software reset for the USB host controller.\r | |
102 | \r | |
78c2ffb5 | 103 | @param This This EFI_USB2_HC_PROTOCOL instance.\r |
104 | @param Attributes A bit mask of the reset operation to perform.\r | |
913cb9dc | 105 | \r |
78c2ffb5 | 106 | @retval EFI_SUCCESS The reset operation succeeded.\r |
107 | @retval EFI_INVALID_PARAMETER Attributes is not valid.\r | |
108 | @retval EFI_UNSUPPOURTED The type of reset specified by Attributes is\r | |
109 | not currently supported by the host controller.\r | |
110 | @retval EFI_DEVICE_ERROR Host controller isn't halted to reset.\r | |
913cb9dc | 111 | \r |
112 | **/\r | |
913cb9dc | 113 | EFI_STATUS\r |
114 | EFIAPI\r | |
115 | EhcReset (\r | |
116 | IN EFI_USB2_HC_PROTOCOL *This,\r | |
117 | IN UINT16 Attributes\r | |
118 | )\r | |
119 | {\r | |
120 | USB2_HC_DEV *Ehc;\r | |
121 | EFI_TPL OldTpl;\r | |
122 | EFI_STATUS Status;\r | |
123 | \r | |
124 | OldTpl = gBS->RaiseTPL (EHC_TPL);\r | |
125 | Ehc = EHC_FROM_THIS (This);\r | |
126 | \r | |
127 | switch (Attributes) {\r | |
128 | case EFI_USB_HC_RESET_GLOBAL:\r | |
129 | //\r | |
130 | // Flow through, same behavior as Host Controller Reset\r | |
131 | //\r | |
132 | case EFI_USB_HC_RESET_HOST_CONTROLLER:\r | |
133 | //\r | |
134 | // Host Controller must be Halt when Reset it\r | |
135 | //\r | |
136 | if (!EhcIsHalt (Ehc)) {\r | |
41e8ff27 | 137 | Status = EhcHaltHC (Ehc, EHC_GENERIC_TIMEOUT);\r |
913cb9dc | 138 | \r |
139 | if (EFI_ERROR (Status)) {\r | |
140 | Status = EFI_DEVICE_ERROR;\r | |
141 | goto ON_EXIT;\r | |
142 | }\r | |
143 | }\r | |
68246fa8 | 144 | \r |
913cb9dc | 145 | //\r |
146 | // Clean up the asynchronous transfers, currently only\r | |
147 | // interrupt supports asynchronous operation.\r | |
148 | //\r | |
149 | EhciDelAllAsyncIntTransfers (Ehc);\r | |
150 | EhcAckAllInterrupt (Ehc);\r | |
151 | EhcFreeSched (Ehc);\r | |
152 | \r | |
41e8ff27 | 153 | Status = EhcResetHC (Ehc, EHC_RESET_TIMEOUT);\r |
913cb9dc | 154 | \r |
155 | if (EFI_ERROR (Status)) {\r | |
156 | goto ON_EXIT;\r | |
157 | }\r | |
158 | \r | |
159 | Status = EhcInitHC (Ehc);\r | |
160 | break;\r | |
161 | \r | |
162 | case EFI_USB_HC_RESET_GLOBAL_WITH_DEBUG:\r | |
163 | case EFI_USB_HC_RESET_HOST_WITH_DEBUG:\r | |
164 | Status = EFI_UNSUPPORTED;\r | |
165 | break;\r | |
166 | \r | |
167 | default:\r | |
168 | Status = EFI_INVALID_PARAMETER;\r | |
169 | }\r | |
170 | \r | |
171 | ON_EXIT:\r | |
1c619535 | 172 | DEBUG ((EFI_D_INFO, "EhcReset: exit status %r\n", Status));\r |
913cb9dc | 173 | gBS->RestoreTPL (OldTpl);\r |
174 | return Status;\r | |
175 | }\r | |
176 | \r | |
177 | \r | |
178 | /**\r | |
179 | Retrieve the current state of the USB host controller.\r | |
180 | \r | |
78c2ffb5 | 181 | @param This This EFI_USB2_HC_PROTOCOL instance.\r |
182 | @param State Variable to return the current host controller\r | |
183 | state.\r | |
913cb9dc | 184 | \r |
78c2ffb5 | 185 | @retval EFI_SUCCESS Host controller state was returned in State.\r |
186 | @retval EFI_INVALID_PARAMETER State is NULL.\r | |
187 | @retval EFI_DEVICE_ERROR An error was encountered while attempting to\r | |
188 | retrieve the host controller's current state.\r | |
913cb9dc | 189 | \r |
190 | **/\r | |
913cb9dc | 191 | EFI_STATUS\r |
192 | EFIAPI\r | |
193 | EhcGetState (\r | |
db0f0d3c | 194 | IN EFI_USB2_HC_PROTOCOL *This,\r |
195 | OUT EFI_USB_HC_STATE *State\r | |
913cb9dc | 196 | )\r |
197 | {\r | |
198 | EFI_TPL OldTpl;\r | |
199 | USB2_HC_DEV *Ehc;\r | |
200 | \r | |
201 | if (State == NULL) {\r | |
202 | return EFI_INVALID_PARAMETER;\r | |
203 | }\r | |
204 | \r | |
205 | OldTpl = gBS->RaiseTPL (EHC_TPL);\r | |
206 | Ehc = EHC_FROM_THIS (This);\r | |
207 | \r | |
208 | if (EHC_REG_BIT_IS_SET (Ehc, EHC_USBSTS_OFFSET, USBSTS_HALT)) {\r | |
209 | *State = EfiUsbHcStateHalt;\r | |
210 | } else {\r | |
211 | *State = EfiUsbHcStateOperational;\r | |
212 | }\r | |
213 | \r | |
214 | gBS->RestoreTPL (OldTpl);\r | |
215 | \r | |
1c619535 | 216 | DEBUG ((EFI_D_INFO, "EhcGetState: current state %d\n", *State));\r |
913cb9dc | 217 | return EFI_SUCCESS;\r |
218 | }\r | |
219 | \r | |
220 | \r | |
221 | /**\r | |
222 | Sets the USB host controller to a specific state.\r | |
223 | \r | |
78c2ffb5 | 224 | @param This This EFI_USB2_HC_PROTOCOL instance.\r |
225 | @param State The state of the host controller that will be set.\r | |
913cb9dc | 226 | \r |
78c2ffb5 | 227 | @retval EFI_SUCCESS The USB host controller was successfully placed\r |
228 | in the state specified by State.\r | |
229 | @retval EFI_INVALID_PARAMETER State is invalid.\r | |
230 | @retval EFI_DEVICE_ERROR Failed to set the state due to device error.\r | |
913cb9dc | 231 | \r |
232 | **/\r | |
913cb9dc | 233 | EFI_STATUS\r |
234 | EFIAPI\r | |
235 | EhcSetState (\r | |
236 | IN EFI_USB2_HC_PROTOCOL *This,\r | |
237 | IN EFI_USB_HC_STATE State\r | |
238 | )\r | |
239 | {\r | |
240 | USB2_HC_DEV *Ehc;\r | |
241 | EFI_TPL OldTpl;\r | |
242 | EFI_STATUS Status;\r | |
243 | EFI_USB_HC_STATE CurState;\r | |
244 | \r | |
245 | Status = EhcGetState (This, &CurState);\r | |
246 | \r | |
247 | if (EFI_ERROR (Status)) {\r | |
248 | return EFI_DEVICE_ERROR;\r | |
249 | }\r | |
250 | \r | |
251 | if (CurState == State) {\r | |
252 | return EFI_SUCCESS;\r | |
253 | }\r | |
254 | \r | |
255 | OldTpl = gBS->RaiseTPL (EHC_TPL);\r | |
256 | Ehc = EHC_FROM_THIS (This);\r | |
257 | \r | |
258 | switch (State) {\r | |
259 | case EfiUsbHcStateHalt:\r | |
41e8ff27 | 260 | Status = EhcHaltHC (Ehc, EHC_GENERIC_TIMEOUT);\r |
913cb9dc | 261 | break;\r |
262 | \r | |
263 | case EfiUsbHcStateOperational:\r | |
264 | if (EHC_REG_BIT_IS_SET (Ehc, EHC_USBSTS_OFFSET, USBSTS_SYS_ERROR)) {\r | |
265 | Status = EFI_DEVICE_ERROR;\r | |
266 | break;\r | |
267 | }\r | |
268 | \r | |
41e8ff27 | 269 | //\r |
270 | // Software must not write a one to this field unless the host controller\r | |
68246fa8 | 271 | // is in the Halted state. Doing so will yield undefined results.\r |
41e8ff27 | 272 | // refers to Spec[EHCI1.0-2.3.1]\r |
68246fa8 | 273 | //\r |
41e8ff27 | 274 | if (!EHC_REG_BIT_IS_SET (Ehc, EHC_USBSTS_OFFSET, USBSTS_HALT)) {\r |
275 | Status = EFI_DEVICE_ERROR;\r | |
276 | break;\r | |
277 | }\r | |
278 | \r | |
279 | Status = EhcRunHC (Ehc, EHC_GENERIC_TIMEOUT);\r | |
913cb9dc | 280 | break;\r |
281 | \r | |
282 | case EfiUsbHcStateSuspend:\r | |
283 | Status = EFI_UNSUPPORTED;\r | |
284 | break;\r | |
285 | \r | |
286 | default:\r | |
287 | Status = EFI_INVALID_PARAMETER;\r | |
288 | }\r | |
289 | \r | |
1c619535 | 290 | DEBUG ((EFI_D_INFO, "EhcSetState: exit status %r\n", Status));\r |
913cb9dc | 291 | gBS->RestoreTPL (OldTpl);\r |
292 | return Status;\r | |
293 | }\r | |
294 | \r | |
295 | \r | |
296 | /**\r | |
297 | Retrieves the current status of a USB root hub port.\r | |
298 | \r | |
78c2ffb5 | 299 | @param This This EFI_USB2_HC_PROTOCOL instance.\r |
300 | @param PortNumber The root hub port to retrieve the state from.\r | |
301 | This value is zero-based.\r | |
302 | @param PortStatus Variable to receive the port state.\r | |
913cb9dc | 303 | \r |
78c2ffb5 | 304 | @retval EFI_SUCCESS The status of the USB root hub port specified.\r |
305 | by PortNumber was returned in PortStatus.\r | |
306 | @retval EFI_INVALID_PARAMETER PortNumber is invalid.\r | |
307 | @retval EFI_DEVICE_ERROR Can't read register.\r | |
913cb9dc | 308 | \r |
309 | **/\r | |
913cb9dc | 310 | EFI_STATUS\r |
311 | EFIAPI\r | |
312 | EhcGetRootHubPortStatus (\r | |
db0f0d3c | 313 | IN EFI_USB2_HC_PROTOCOL *This,\r |
314 | IN UINT8 PortNumber,\r | |
315 | OUT EFI_USB_PORT_STATUS *PortStatus\r | |
913cb9dc | 316 | )\r |
317 | {\r | |
318 | USB2_HC_DEV *Ehc;\r | |
319 | EFI_TPL OldTpl;\r | |
320 | UINT32 Offset;\r | |
321 | UINT32 State;\r | |
322 | UINT32 TotalPort;\r | |
323 | UINTN Index;\r | |
324 | UINTN MapSize;\r | |
325 | EFI_STATUS Status;\r | |
326 | \r | |
327 | if (PortStatus == NULL) {\r | |
328 | return EFI_INVALID_PARAMETER;\r | |
329 | }\r | |
330 | \r | |
331 | OldTpl = gBS->RaiseTPL (EHC_TPL);\r | |
332 | \r | |
333 | Ehc = EHC_FROM_THIS (This);\r | |
334 | Status = EFI_SUCCESS;\r | |
335 | \r | |
336 | TotalPort = (Ehc->HcStructParams & HCSP_NPORTS);\r | |
337 | \r | |
338 | if (PortNumber >= TotalPort) {\r | |
339 | Status = EFI_INVALID_PARAMETER;\r | |
340 | goto ON_EXIT;\r | |
341 | }\r | |
342 | \r | |
343 | Offset = (UINT32) (EHC_PORT_STAT_OFFSET + (4 * PortNumber));\r | |
344 | PortStatus->PortStatus = 0;\r | |
345 | PortStatus->PortChangeStatus = 0;\r | |
346 | \r | |
347 | State = EhcReadOpReg (Ehc, Offset);\r | |
348 | \r | |
349 | //\r | |
350 | // Identify device speed. If in K state, it is low speed.\r | |
351 | // If the port is enabled after reset, the device is of\r | |
352 | // high speed. The USB bus driver should retrieve the actual\r | |
353 | // port speed after reset.\r | |
354 | //\r | |
355 | if (EHC_BIT_IS_SET (State, PORTSC_LINESTATE_K)) {\r | |
356 | PortStatus->PortStatus |= USB_PORT_STAT_LOW_SPEED;\r | |
357 | \r | |
358 | } else if (EHC_BIT_IS_SET (State, PORTSC_ENABLED)) {\r | |
359 | PortStatus->PortStatus |= USB_PORT_STAT_HIGH_SPEED;\r | |
360 | }\r | |
361 | \r | |
362 | //\r | |
363 | // Convert the EHCI port/port change state to UEFI status\r | |
364 | //\r | |
365 | MapSize = sizeof (mUsbPortStateMap) / sizeof (USB_PORT_STATE_MAP);\r | |
366 | \r | |
367 | for (Index = 0; Index < MapSize; Index++) {\r | |
368 | if (EHC_BIT_IS_SET (State, mUsbPortStateMap[Index].HwState)) {\r | |
c52fa98c | 369 | PortStatus->PortStatus = (UINT16) (PortStatus->PortStatus | mUsbPortStateMap[Index].UefiState);\r |
913cb9dc | 370 | }\r |
371 | }\r | |
372 | \r | |
373 | MapSize = sizeof (mUsbPortChangeMap) / sizeof (USB_PORT_STATE_MAP);\r | |
374 | \r | |
375 | for (Index = 0; Index < MapSize; Index++) {\r | |
376 | if (EHC_BIT_IS_SET (State, mUsbPortChangeMap[Index].HwState)) {\r | |
c52fa98c | 377 | PortStatus->PortChangeStatus = (UINT16) (PortStatus->PortChangeStatus | mUsbPortChangeMap[Index].UefiState);\r |
913cb9dc | 378 | }\r |
379 | }\r | |
380 | \r | |
381 | ON_EXIT:\r | |
382 | gBS->RestoreTPL (OldTpl);\r | |
383 | return Status;\r | |
384 | }\r | |
385 | \r | |
386 | \r | |
387 | /**\r | |
388 | Sets a feature for the specified root hub port.\r | |
389 | \r | |
78c2ffb5 | 390 | @param This This EFI_USB2_HC_PROTOCOL instance.\r |
391 | @param PortNumber Root hub port to set.\r | |
392 | @param PortFeature Feature to set.\r | |
913cb9dc | 393 | \r |
78c2ffb5 | 394 | @retval EFI_SUCCESS The feature specified by PortFeature was set.\r |
395 | @retval EFI_INVALID_PARAMETER PortNumber is invalid or PortFeature is invalid.\r | |
396 | @retval EFI_DEVICE_ERROR Can't read register.\r | |
913cb9dc | 397 | \r |
398 | **/\r | |
913cb9dc | 399 | EFI_STATUS\r |
400 | EFIAPI\r | |
401 | EhcSetRootHubPortFeature (\r | |
402 | IN EFI_USB2_HC_PROTOCOL *This,\r | |
403 | IN UINT8 PortNumber,\r | |
404 | IN EFI_USB_PORT_FEATURE PortFeature\r | |
405 | )\r | |
406 | {\r | |
407 | USB2_HC_DEV *Ehc;\r | |
408 | EFI_TPL OldTpl;\r | |
409 | UINT32 Offset;\r | |
410 | UINT32 State;\r | |
411 | UINT32 TotalPort;\r | |
412 | EFI_STATUS Status;\r | |
413 | \r | |
414 | OldTpl = gBS->RaiseTPL (EHC_TPL);\r | |
415 | Ehc = EHC_FROM_THIS (This);\r | |
416 | Status = EFI_SUCCESS;\r | |
417 | \r | |
418 | TotalPort = (Ehc->HcStructParams & HCSP_NPORTS);\r | |
419 | \r | |
420 | if (PortNumber >= TotalPort) {\r | |
421 | Status = EFI_INVALID_PARAMETER;\r | |
422 | goto ON_EXIT;\r | |
423 | }\r | |
424 | \r | |
425 | Offset = (UINT32) (EHC_PORT_STAT_OFFSET + (4 * PortNumber));\r | |
426 | State = EhcReadOpReg (Ehc, Offset);\r | |
427 | \r | |
428 | //\r | |
429 | // Mask off the port status change bits, these bits are\r | |
430 | // write clean bit\r | |
431 | //\r | |
432 | State &= ~PORTSC_CHANGE_MASK;\r | |
433 | \r | |
434 | switch (PortFeature) {\r | |
435 | case EfiUsbPortEnable:\r | |
436 | //\r | |
437 | // Sofeware can't set this bit, Port can only be enable by\r | |
438 | // EHCI as a part of the reset and enable\r | |
439 | //\r | |
440 | State |= PORTSC_ENABLED;\r | |
441 | EhcWriteOpReg (Ehc, Offset, State);\r | |
442 | break;\r | |
443 | \r | |
444 | case EfiUsbPortSuspend:\r | |
445 | State |= PORTSC_SUSPEND;\r | |
446 | EhcWriteOpReg (Ehc, Offset, State);\r | |
447 | break;\r | |
448 | \r | |
449 | case EfiUsbPortReset:\r | |
450 | //\r | |
451 | // Make sure Host Controller not halt before reset it\r | |
452 | //\r | |
453 | if (EhcIsHalt (Ehc)) {\r | |
41e8ff27 | 454 | Status = EhcRunHC (Ehc, EHC_GENERIC_TIMEOUT);\r |
913cb9dc | 455 | \r |
456 | if (EFI_ERROR (Status)) {\r | |
1c619535 | 457 | DEBUG ((EFI_D_INFO, "EhcSetRootHubPortFeature :failed to start HC - %r\n", Status));\r |
913cb9dc | 458 | break;\r |
459 | }\r | |
460 | }\r | |
68246fa8 | 461 | \r |
913cb9dc | 462 | //\r |
463 | // Set one to PortReset bit must also set zero to PortEnable bit\r | |
464 | //\r | |
465 | State |= PORTSC_RESET;\r | |
466 | State &= ~PORTSC_ENABLED;\r | |
467 | EhcWriteOpReg (Ehc, Offset, State);\r | |
468 | break;\r | |
469 | \r | |
470 | case EfiUsbPortPower:\r | |
471 | //\r | |
f01219e8 | 472 | // Set port power bit when PPC is 1\r |
913cb9dc | 473 | //\r |
f01219e8 | 474 | if ((Ehc->HcCapParams & HCSP_PPC) == HCSP_PPC) {\r |
475 | State |= PORTSC_POWER;\r | |
476 | EhcWriteOpReg (Ehc, Offset, State);\r | |
477 | }\r | |
913cb9dc | 478 | break;\r |
479 | \r | |
480 | case EfiUsbPortOwner:\r | |
481 | State |= PORTSC_OWNER;\r | |
482 | EhcWriteOpReg (Ehc, Offset, State);\r | |
483 | break;\r | |
484 | \r | |
485 | default:\r | |
486 | Status = EFI_INVALID_PARAMETER;\r | |
487 | }\r | |
488 | \r | |
489 | ON_EXIT:\r | |
1c619535 | 490 | DEBUG ((EFI_D_INFO, "EhcSetRootHubPortFeature: exit status %r\n", Status));\r |
913cb9dc | 491 | \r |
492 | gBS->RestoreTPL (OldTpl);\r | |
493 | return Status;\r | |
494 | }\r | |
495 | \r | |
496 | \r | |
497 | /**\r | |
498 | Clears a feature for the specified root hub port.\r | |
499 | \r | |
78c2ffb5 | 500 | @param This A pointer to the EFI_USB2_HC_PROTOCOL instance.\r |
501 | @param PortNumber Specifies the root hub port whose feature is\r | |
502 | requested to be cleared.\r | |
503 | @param PortFeature Indicates the feature selector associated with the\r | |
504 | feature clear request.\r | |
913cb9dc | 505 | \r |
78c2ffb5 | 506 | @retval EFI_SUCCESS The feature specified by PortFeature was cleared\r |
507 | for the USB root hub port specified by PortNumber.\r | |
508 | @retval EFI_INVALID_PARAMETER PortNumber is invalid or PortFeature is invalid.\r | |
509 | @retval EFI_DEVICE_ERROR Can't read register.\r | |
913cb9dc | 510 | \r |
511 | **/\r | |
913cb9dc | 512 | EFI_STATUS\r |
513 | EFIAPI\r | |
514 | EhcClearRootHubPortFeature (\r | |
515 | IN EFI_USB2_HC_PROTOCOL *This,\r | |
516 | IN UINT8 PortNumber,\r | |
517 | IN EFI_USB_PORT_FEATURE PortFeature\r | |
518 | )\r | |
519 | {\r | |
520 | USB2_HC_DEV *Ehc;\r | |
521 | EFI_TPL OldTpl;\r | |
522 | UINT32 Offset;\r | |
523 | UINT32 State;\r | |
524 | UINT32 TotalPort;\r | |
525 | EFI_STATUS Status;\r | |
526 | \r | |
527 | OldTpl = gBS->RaiseTPL (EHC_TPL);\r | |
528 | Ehc = EHC_FROM_THIS (This);\r | |
529 | Status = EFI_SUCCESS;\r | |
530 | \r | |
531 | TotalPort = (Ehc->HcStructParams & HCSP_NPORTS);\r | |
532 | \r | |
533 | if (PortNumber >= TotalPort) {\r | |
534 | Status = EFI_INVALID_PARAMETER;\r | |
535 | goto ON_EXIT;\r | |
536 | }\r | |
537 | \r | |
538 | Offset = EHC_PORT_STAT_OFFSET + (4 * PortNumber);\r | |
539 | State = EhcReadOpReg (Ehc, Offset);\r | |
540 | State &= ~PORTSC_CHANGE_MASK;\r | |
541 | \r | |
542 | switch (PortFeature) {\r | |
543 | case EfiUsbPortEnable:\r | |
544 | //\r | |
545 | // Clear PORT_ENABLE feature means disable port.\r | |
546 | //\r | |
547 | State &= ~PORTSC_ENABLED;\r | |
548 | EhcWriteOpReg (Ehc, Offset, State);\r | |
549 | break;\r | |
550 | \r | |
551 | case EfiUsbPortSuspend:\r | |
552 | //\r | |
553 | // A write of zero to this bit is ignored by the host\r | |
554 | // controller. The host controller will unconditionally\r | |
555 | // set this bit to a zero when:\r | |
556 | // 1. software sets the Forct Port Resume bit to a zero from a one.\r | |
557 | // 2. software sets the Port Reset bit to a one frome a zero.\r | |
558 | //\r | |
559 | State &= ~PORSTSC_RESUME;\r | |
560 | EhcWriteOpReg (Ehc, Offset, State);\r | |
561 | break;\r | |
562 | \r | |
563 | case EfiUsbPortReset:\r | |
564 | //\r | |
565 | // Clear PORT_RESET means clear the reset signal.\r | |
566 | //\r | |
567 | State &= ~PORTSC_RESET;\r | |
568 | EhcWriteOpReg (Ehc, Offset, State);\r | |
569 | break;\r | |
570 | \r | |
571 | case EfiUsbPortOwner:\r | |
572 | //\r | |
573 | // Clear port owner means this port owned by EHC\r | |
574 | //\r | |
575 | State &= ~PORTSC_OWNER;\r | |
576 | EhcWriteOpReg (Ehc, Offset, State);\r | |
577 | break;\r | |
578 | \r | |
579 | case EfiUsbPortConnectChange:\r | |
580 | //\r | |
581 | // Clear connect status change\r | |
582 | //\r | |
583 | State |= PORTSC_CONN_CHANGE;\r | |
584 | EhcWriteOpReg (Ehc, Offset, State);\r | |
585 | break;\r | |
586 | \r | |
587 | case EfiUsbPortEnableChange:\r | |
588 | //\r | |
589 | // Clear enable status change\r | |
590 | //\r | |
591 | State |= PORTSC_ENABLE_CHANGE;\r | |
592 | EhcWriteOpReg (Ehc, Offset, State);\r | |
593 | break;\r | |
594 | \r | |
595 | case EfiUsbPortOverCurrentChange:\r | |
596 | //\r | |
597 | // Clear PortOverCurrent change\r | |
598 | //\r | |
599 | State |= PORTSC_OVERCUR_CHANGE;\r | |
600 | EhcWriteOpReg (Ehc, Offset, State);\r | |
601 | break;\r | |
602 | \r | |
603 | case EfiUsbPortPower:\r | |
f01219e8 | 604 | //\r |
605 | // Clear port power bit when PPC is 1\r | |
606 | //\r | |
607 | if ((Ehc->HcCapParams & HCSP_PPC) == HCSP_PPC) {\r | |
608 | State &= ~PORTSC_POWER;\r | |
609 | EhcWriteOpReg (Ehc, Offset, State);\r | |
610 | }\r | |
611 | break;\r | |
913cb9dc | 612 | case EfiUsbPortSuspendChange:\r |
613 | case EfiUsbPortResetChange:\r | |
614 | //\r | |
615 | // Not supported or not related operation\r | |
616 | //\r | |
617 | break;\r | |
618 | \r | |
619 | default:\r | |
620 | Status = EFI_INVALID_PARAMETER;\r | |
621 | break;\r | |
622 | }\r | |
623 | \r | |
624 | ON_EXIT:\r | |
1c619535 | 625 | DEBUG ((EFI_D_INFO, "EhcClearRootHubPortFeature: exit status %r\n", Status));\r |
913cb9dc | 626 | gBS->RestoreTPL (OldTpl);\r |
627 | return Status;\r | |
628 | }\r | |
629 | \r | |
630 | \r | |
631 | /**\r | |
632 | Submits control transfer to a target USB device.\r | |
633 | \r | |
78c2ffb5 | 634 | @param This This EFI_USB2_HC_PROTOCOL instance.\r |
635 | @param DeviceAddress The target device address.\r | |
636 | @param DeviceSpeed Target device speed.\r | |
637 | @param MaximumPacketLength Maximum packet size the default control transfer\r | |
638 | endpoint is capable of sending or receiving.\r | |
639 | @param Request USB device request to send.\r | |
640 | @param TransferDirection Specifies the data direction for the data stage\r | |
641 | @param Data Data buffer to be transmitted or received from USB\r | |
642 | device.\r | |
643 | @param DataLength The size (in bytes) of the data buffer.\r | |
644 | @param TimeOut Indicates the maximum timeout, in millisecond.\r | |
645 | @param Translator Transaction translator to be used by this device.\r | |
646 | @param TransferResult Return the result of this control transfer.\r | |
647 | \r | |
648 | @retval EFI_SUCCESS Transfer was completed successfully.\r | |
649 | @retval EFI_OUT_OF_RESOURCES The transfer failed due to lack of resources.\r | |
650 | @retval EFI_INVALID_PARAMETER Some parameters are invalid.\r | |
651 | @retval EFI_TIMEOUT Transfer failed due to timeout.\r | |
652 | @retval EFI_DEVICE_ERROR Transfer failed due to host controller or device error.\r | |
913cb9dc | 653 | \r |
654 | **/\r | |
913cb9dc | 655 | EFI_STATUS\r |
656 | EFIAPI\r | |
657 | EhcControlTransfer (\r | |
658 | IN EFI_USB2_HC_PROTOCOL *This,\r | |
659 | IN UINT8 DeviceAddress,\r | |
660 | IN UINT8 DeviceSpeed,\r | |
661 | IN UINTN MaximumPacketLength,\r | |
662 | IN EFI_USB_DEVICE_REQUEST *Request,\r | |
663 | IN EFI_USB_DATA_DIRECTION TransferDirection,\r | |
664 | IN OUT VOID *Data,\r | |
665 | IN OUT UINTN *DataLength,\r | |
666 | IN UINTN TimeOut,\r | |
667 | IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,\r | |
668 | OUT UINT32 *TransferResult\r | |
669 | )\r | |
670 | {\r | |
671 | USB2_HC_DEV *Ehc;\r | |
672 | URB *Urb;\r | |
673 | EFI_TPL OldTpl;\r | |
674 | UINT8 Endpoint;\r | |
675 | EFI_STATUS Status;\r | |
676 | \r | |
677 | //\r | |
678 | // Validate parameters\r | |
679 | //\r | |
680 | if ((Request == NULL) || (TransferResult == NULL)) {\r | |
681 | return EFI_INVALID_PARAMETER;\r | |
682 | }\r | |
683 | \r | |
684 | if ((TransferDirection != EfiUsbDataIn) &&\r | |
685 | (TransferDirection != EfiUsbDataOut) &&\r | |
686 | (TransferDirection != EfiUsbNoData)) {\r | |
687 | return EFI_INVALID_PARAMETER;\r | |
688 | }\r | |
689 | \r | |
690 | if ((TransferDirection == EfiUsbNoData) &&\r | |
691 | ((Data != NULL) || (*DataLength != 0))) {\r | |
692 | return EFI_INVALID_PARAMETER;\r | |
693 | }\r | |
694 | \r | |
695 | if ((TransferDirection != EfiUsbNoData) &&\r | |
696 | ((Data == NULL) || (*DataLength == 0))) {\r | |
697 | return EFI_INVALID_PARAMETER;\r | |
698 | }\r | |
699 | \r | |
700 | if ((MaximumPacketLength != 8) && (MaximumPacketLength != 16) &&\r | |
701 | (MaximumPacketLength != 32) && (MaximumPacketLength != 64)) {\r | |
702 | return EFI_INVALID_PARAMETER;\r | |
703 | }\r | |
704 | \r | |
705 | if ((DeviceSpeed == EFI_USB_SPEED_LOW) && (MaximumPacketLength != 8)) {\r | |
706 | return EFI_INVALID_PARAMETER;\r | |
707 | }\r | |
708 | \r | |
709 | OldTpl = gBS->RaiseTPL (EHC_TPL);\r | |
710 | Ehc = EHC_FROM_THIS (This);\r | |
711 | \r | |
712 | Status = EFI_DEVICE_ERROR;\r | |
713 | *TransferResult = EFI_USB_ERR_SYSTEM;\r | |
714 | \r | |
715 | if (EhcIsHalt (Ehc) || EhcIsSysError (Ehc)) {\r | |
1c619535 | 716 | DEBUG ((EFI_D_ERROR, "EhcControlTransfer: HC halted at entrance\n"));\r |
913cb9dc | 717 | \r |
718 | EhcAckAllInterrupt (Ehc);\r | |
719 | goto ON_EXIT;\r | |
720 | }\r | |
721 | \r | |
722 | EhcAckAllInterrupt (Ehc);\r | |
723 | \r | |
724 | //\r | |
725 | // Create a new URB, insert it into the asynchronous\r | |
726 | // schedule list, then poll the execution status.\r | |
727 | //\r | |
728 | //\r | |
729 | // Encode the direction in address, although default control\r | |
730 | // endpoint is bidirectional. EhcCreateUrb expects this\r | |
731 | // combination of Ep addr and its direction.\r | |
732 | //\r | |
c52fa98c | 733 | Endpoint = (UINT8) (0 | ((TransferDirection == EfiUsbDataIn) ? 0x80 : 0));\r |
913cb9dc | 734 | Urb = EhcCreateUrb (\r |
735 | Ehc,\r | |
736 | DeviceAddress,\r | |
737 | Endpoint,\r | |
738 | DeviceSpeed,\r | |
739 | 0,\r | |
740 | MaximumPacketLength,\r | |
741 | Translator,\r | |
742 | EHC_CTRL_TRANSFER,\r | |
743 | Request,\r | |
744 | Data,\r | |
745 | *DataLength,\r | |
746 | NULL,\r | |
747 | NULL,\r | |
748 | 1\r | |
749 | );\r | |
750 | \r | |
751 | if (Urb == NULL) {\r | |
1c619535 | 752 | DEBUG ((EFI_D_ERROR, "EhcControlTransfer: failed to create URB"));\r |
913cb9dc | 753 | \r |
754 | Status = EFI_OUT_OF_RESOURCES;\r | |
755 | goto ON_EXIT;\r | |
756 | }\r | |
757 | \r | |
758 | EhcLinkQhToAsync (Ehc, Urb->Qh);\r | |
759 | Status = EhcExecTransfer (Ehc, Urb, TimeOut);\r | |
760 | EhcUnlinkQhFromAsync (Ehc, Urb->Qh);\r | |
761 | \r | |
762 | //\r | |
763 | // Get the status from URB. The result is updated in EhcCheckUrbResult\r | |
764 | // which is called by EhcExecTransfer\r | |
765 | //\r | |
766 | *TransferResult = Urb->Result;\r | |
767 | *DataLength = Urb->Completed;\r | |
768 | \r | |
769 | if (*TransferResult == EFI_USB_NOERROR) {\r | |
770 | Status = EFI_SUCCESS;\r | |
771 | }\r | |
772 | \r | |
773 | EhcAckAllInterrupt (Ehc);\r | |
774 | EhcFreeUrb (Ehc, Urb);\r | |
775 | \r | |
776 | ON_EXIT:\r | |
777 | Ehc->PciIo->Flush (Ehc->PciIo);\r | |
778 | gBS->RestoreTPL (OldTpl);\r | |
779 | \r | |
780 | if (EFI_ERROR (Status)) {\r | |
1c619535 | 781 | DEBUG ((EFI_D_ERROR, "EhcControlTransfer: error - %r, transfer - %x\n", Status, *TransferResult));\r |
913cb9dc | 782 | }\r |
783 | \r | |
784 | return Status;\r | |
785 | }\r | |
786 | \r | |
787 | \r | |
788 | /**\r | |
789 | Submits bulk transfer to a bulk endpoint of a USB device.\r | |
790 | \r | |
78c2ffb5 | 791 | @param This This EFI_USB2_HC_PROTOCOL instance.\r |
792 | @param DeviceAddress Target device address.\r | |
793 | @param EndPointAddress Endpoint number and its direction in bit 7.\r | |
794 | @param DeviceSpeed Device speed, Low speed device doesn't support bulk\r | |
795 | transfer.\r | |
796 | @param MaximumPacketLength Maximum packet size the endpoint is capable of\r | |
797 | sending or receiving.\r | |
798 | @param DataBuffersNumber Number of data buffers prepared for the transfer.\r | |
799 | @param Data Array of pointers to the buffers of data to transmit\r | |
913cb9dc | 800 | from or receive into.\r |
78c2ffb5 | 801 | @param DataLength The lenght of the data buffer.\r |
802 | @param DataToggle On input, the initial data toggle for the transfer;\r | |
803 | On output, it is updated to to next data toggle to\r | |
804 | use of the subsequent bulk transfer.\r | |
805 | @param TimeOut Indicates the maximum time, in millisecond, which\r | |
806 | the transfer is allowed to complete.\r | |
807 | @param Translator A pointr to the transaction translator data.\r | |
808 | @param TransferResult A pointer to the detailed result information of the\r | |
809 | bulk transfer.\r | |
810 | \r | |
811 | @retval EFI_SUCCESS The transfer was completed successfully.\r | |
812 | @retval EFI_OUT_OF_RESOURCES The transfer failed due to lack of resource.\r | |
813 | @retval EFI_INVALID_PARAMETER Some parameters are invalid.\r | |
814 | @retval EFI_TIMEOUT The transfer failed due to timeout.\r | |
815 | @retval EFI_DEVICE_ERROR The transfer failed due to host controller error.\r | |
913cb9dc | 816 | \r |
817 | **/\r | |
913cb9dc | 818 | EFI_STATUS\r |
819 | EFIAPI\r | |
820 | EhcBulkTransfer (\r | |
821 | IN EFI_USB2_HC_PROTOCOL *This,\r | |
822 | IN UINT8 DeviceAddress,\r | |
823 | IN UINT8 EndPointAddress,\r | |
824 | IN UINT8 DeviceSpeed,\r | |
825 | IN UINTN MaximumPacketLength,\r | |
826 | IN UINT8 DataBuffersNumber,\r | |
827 | IN OUT VOID *Data[EFI_USB_MAX_BULK_BUFFER_NUM],\r | |
828 | IN OUT UINTN *DataLength,\r | |
829 | IN OUT UINT8 *DataToggle,\r | |
830 | IN UINTN TimeOut,\r | |
831 | IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,\r | |
832 | OUT UINT32 *TransferResult\r | |
833 | )\r | |
834 | {\r | |
835 | USB2_HC_DEV *Ehc;\r | |
836 | URB *Urb;\r | |
837 | EFI_TPL OldTpl;\r | |
838 | EFI_STATUS Status;\r | |
839 | \r | |
840 | //\r | |
841 | // Validate the parameters\r | |
842 | //\r | |
843 | if ((DataLength == NULL) || (*DataLength == 0) ||\r | |
844 | (Data == NULL) || (Data[0] == NULL) || (TransferResult == NULL)) {\r | |
845 | return EFI_INVALID_PARAMETER;\r | |
846 | }\r | |
847 | \r | |
848 | if ((*DataToggle != 0) && (*DataToggle != 1)) {\r | |
849 | return EFI_INVALID_PARAMETER;\r | |
850 | }\r | |
851 | \r | |
852 | if ((DeviceSpeed == EFI_USB_SPEED_LOW) ||\r | |
853 | ((DeviceSpeed == EFI_USB_SPEED_FULL) && (MaximumPacketLength > 64)) ||\r | |
854 | ((EFI_USB_SPEED_HIGH == DeviceSpeed) && (MaximumPacketLength > 512))) {\r | |
855 | return EFI_INVALID_PARAMETER;\r | |
856 | }\r | |
857 | \r | |
858 | OldTpl = gBS->RaiseTPL (EHC_TPL);\r | |
859 | Ehc = EHC_FROM_THIS (This);\r | |
860 | \r | |
861 | *TransferResult = EFI_USB_ERR_SYSTEM;\r | |
862 | Status = EFI_DEVICE_ERROR;\r | |
863 | \r | |
864 | if (EhcIsHalt (Ehc) || EhcIsSysError (Ehc)) {\r | |
1c619535 | 865 | DEBUG ((EFI_D_ERROR, "EhcBulkTransfer: HC is halted\n"));\r |
913cb9dc | 866 | \r |
867 | EhcAckAllInterrupt (Ehc);\r | |
868 | goto ON_EXIT;\r | |
869 | }\r | |
870 | \r | |
871 | EhcAckAllInterrupt (Ehc);\r | |
872 | \r | |
873 | //\r | |
874 | // Create a new URB, insert it into the asynchronous\r | |
875 | // schedule list, then poll the execution status.\r | |
876 | //\r | |
877 | Urb = EhcCreateUrb (\r | |
878 | Ehc,\r | |
879 | DeviceAddress,\r | |
880 | EndPointAddress,\r | |
881 | DeviceSpeed,\r | |
882 | *DataToggle,\r | |
883 | MaximumPacketLength,\r | |
884 | Translator,\r | |
885 | EHC_BULK_TRANSFER,\r | |
886 | NULL,\r | |
887 | Data[0],\r | |
888 | *DataLength,\r | |
889 | NULL,\r | |
890 | NULL,\r | |
891 | 1\r | |
892 | );\r | |
893 | \r | |
894 | if (Urb == NULL) {\r | |
1c619535 | 895 | DEBUG ((EFI_D_ERROR, "EhcBulkTransfer: failed to create URB\n"));\r |
913cb9dc | 896 | \r |
897 | Status = EFI_OUT_OF_RESOURCES;\r | |
898 | goto ON_EXIT;\r | |
899 | }\r | |
900 | \r | |
901 | EhcLinkQhToAsync (Ehc, Urb->Qh);\r | |
902 | Status = EhcExecTransfer (Ehc, Urb, TimeOut);\r | |
903 | EhcUnlinkQhFromAsync (Ehc, Urb->Qh);\r | |
904 | \r | |
905 | *TransferResult = Urb->Result;\r | |
906 | *DataLength = Urb->Completed;\r | |
907 | *DataToggle = Urb->DataToggle;\r | |
908 | \r | |
909 | if (*TransferResult == EFI_USB_NOERROR) {\r | |
910 | Status = EFI_SUCCESS;\r | |
911 | }\r | |
912 | \r | |
913 | EhcAckAllInterrupt (Ehc);\r | |
914 | EhcFreeUrb (Ehc, Urb);\r | |
915 | \r | |
916 | ON_EXIT:\r | |
917 | Ehc->PciIo->Flush (Ehc->PciIo);\r | |
918 | gBS->RestoreTPL (OldTpl);\r | |
919 | \r | |
920 | if (EFI_ERROR (Status)) {\r | |
1c619535 | 921 | DEBUG ((EFI_D_ERROR, "EhcBulkTransfer: error - %r, transfer - %x\n", Status, *TransferResult));\r |
913cb9dc | 922 | }\r |
923 | \r | |
924 | return Status;\r | |
925 | }\r | |
926 | \r | |
927 | \r | |
928 | /**\r | |
929 | Submits an asynchronous interrupt transfer to an\r | |
930 | interrupt endpoint of a USB device.\r | |
931 | \r | |
78c2ffb5 | 932 | @param This This EFI_USB2_HC_PROTOCOL instance.\r |
933 | @param DeviceAddress Target device address.\r | |
934 | @param EndPointAddress Endpoint number and its direction encoded in bit 7\r | |
935 | @param DeviceSpeed Indicates device speed.\r | |
936 | @param MaximumPacketLength Maximum packet size the target endpoint is capable\r | |
937 | @param IsNewTransfer If TRUE, to submit an new asynchronous interrupt\r | |
938 | transfer If FALSE, to remove the specified\r | |
939 | asynchronous interrupt.\r | |
940 | @param DataToggle On input, the initial data toggle to use; on output,\r | |
941 | it is updated to indicate the next data toggle.\r | |
942 | @param PollingInterval The he interval, in milliseconds, that the transfer\r | |
943 | is polled.\r | |
944 | @param DataLength The length of data to receive at the rate specified\r | |
945 | by PollingInterval.\r | |
946 | @param Translator Transaction translator to use.\r | |
947 | @param CallBackFunction Function to call at the rate specified by\r | |
948 | PollingInterval.\r | |
949 | @param Context Context to CallBackFunction.\r | |
950 | \r | |
951 | @retval EFI_SUCCESS The request has been successfully submitted or canceled.\r | |
952 | @retval EFI_INVALID_PARAMETER Some parameters are invalid.\r | |
953 | @retval EFI_OUT_OF_RESOURCES The request failed due to a lack of resources.\r | |
954 | @retval EFI_DEVICE_ERROR The transfer failed due to host controller error.\r | |
913cb9dc | 955 | \r |
956 | **/\r | |
913cb9dc | 957 | EFI_STATUS\r |
958 | EFIAPI\r | |
959 | EhcAsyncInterruptTransfer (\r | |
960 | IN EFI_USB2_HC_PROTOCOL * This,\r | |
961 | IN UINT8 DeviceAddress,\r | |
962 | IN UINT8 EndPointAddress,\r | |
963 | IN UINT8 DeviceSpeed,\r | |
964 | IN UINTN MaximumPacketLength,\r | |
965 | IN BOOLEAN IsNewTransfer,\r | |
966 | IN OUT UINT8 *DataToggle,\r | |
967 | IN UINTN PollingInterval,\r | |
968 | IN UINTN DataLength,\r | |
969 | IN EFI_USB2_HC_TRANSACTION_TRANSLATOR * Translator,\r | |
970 | IN EFI_ASYNC_USB_TRANSFER_CALLBACK CallBackFunction,\r | |
971 | IN VOID *Context OPTIONAL\r | |
972 | )\r | |
973 | {\r | |
974 | USB2_HC_DEV *Ehc;\r | |
975 | URB *Urb;\r | |
976 | EFI_TPL OldTpl;\r | |
977 | EFI_STATUS Status;\r | |
978 | UINT8 *Data;\r | |
979 | \r | |
980 | //\r | |
981 | // Validate parameters\r | |
982 | //\r | |
e172ea16 | 983 | if (!EHCI_IS_DATAIN (EndPointAddress)) {\r |
913cb9dc | 984 | return EFI_INVALID_PARAMETER;\r |
985 | }\r | |
986 | \r | |
987 | if (IsNewTransfer) {\r | |
988 | if (DataLength == 0) {\r | |
989 | return EFI_INVALID_PARAMETER;\r | |
990 | }\r | |
991 | \r | |
992 | if ((*DataToggle != 1) && (*DataToggle != 0)) {\r | |
993 | return EFI_INVALID_PARAMETER;\r | |
994 | }\r | |
995 | \r | |
996 | if ((PollingInterval > 255) || (PollingInterval < 1)) {\r | |
997 | return EFI_INVALID_PARAMETER;\r | |
998 | }\r | |
999 | }\r | |
1000 | \r | |
1001 | OldTpl = gBS->RaiseTPL (EHC_TPL);\r | |
1002 | Ehc = EHC_FROM_THIS (This);\r | |
1003 | \r | |
1004 | //\r | |
1005 | // Delete Async interrupt transfer request. DataToggle will return\r | |
1006 | // the next data toggle to use.\r | |
1007 | //\r | |
1008 | if (!IsNewTransfer) {\r | |
1009 | Status = EhciDelAsyncIntTransfer (Ehc, DeviceAddress, EndPointAddress, DataToggle);\r | |
1010 | \r | |
1c619535 | 1011 | DEBUG ((EFI_D_INFO, "EhcAsyncInterruptTransfer: remove old transfer - %r\n", Status));\r |
913cb9dc | 1012 | goto ON_EXIT;\r |
1013 | }\r | |
1014 | \r | |
1015 | Status = EFI_SUCCESS;\r | |
1016 | \r | |
1017 | if (EhcIsHalt (Ehc) || EhcIsSysError (Ehc)) {\r | |
1c619535 | 1018 | DEBUG ((EFI_D_ERROR, "EhcAsyncInterruptTransfer: HC is halt\n"));\r |
913cb9dc | 1019 | EhcAckAllInterrupt (Ehc);\r |
1020 | \r | |
1021 | Status = EFI_DEVICE_ERROR;\r | |
1022 | goto ON_EXIT;\r | |
1023 | }\r | |
1024 | \r | |
1025 | EhcAckAllInterrupt (Ehc);\r | |
1026 | \r | |
1027 | Data = AllocatePool (DataLength);\r | |
1028 | \r | |
1029 | if (Data == NULL) {\r | |
1c619535 | 1030 | DEBUG ((EFI_D_ERROR, "EhcAsyncInterruptTransfer: failed to allocate buffer\n"));\r |
913cb9dc | 1031 | \r |
1032 | Status = EFI_OUT_OF_RESOURCES;\r | |
1033 | goto ON_EXIT;\r | |
1034 | }\r | |
1035 | \r | |
1036 | Urb = EhcCreateUrb (\r | |
1037 | Ehc,\r | |
1038 | DeviceAddress,\r | |
1039 | EndPointAddress,\r | |
1040 | DeviceSpeed,\r | |
1041 | *DataToggle,\r | |
1042 | MaximumPacketLength,\r | |
1043 | Translator,\r | |
1044 | EHC_INT_TRANSFER_ASYNC,\r | |
1045 | NULL,\r | |
1046 | Data,\r | |
1047 | DataLength,\r | |
1048 | CallBackFunction,\r | |
1049 | Context,\r | |
1050 | PollingInterval\r | |
1051 | );\r | |
1052 | \r | |
1053 | if (Urb == NULL) {\r | |
1c619535 | 1054 | DEBUG ((EFI_D_ERROR, "EhcAsyncInterruptTransfer: failed to create URB\n"));\r |
913cb9dc | 1055 | \r |
1056 | gBS->FreePool (Data);\r | |
1057 | Status = EFI_OUT_OF_RESOURCES;\r | |
1058 | goto ON_EXIT;\r | |
1059 | }\r | |
1060 | \r | |
1061 | //\r | |
1062 | // New asynchronous transfer must inserted to the head.\r | |
1063 | // Check the comments in EhcMoniteAsyncRequests\r | |
1064 | //\r | |
1065 | EhcLinkQhToPeriod (Ehc, Urb->Qh);\r | |
1066 | InsertHeadList (&Ehc->AsyncIntTransfers, &Urb->UrbList);\r | |
1067 | \r | |
1068 | ON_EXIT:\r | |
1069 | Ehc->PciIo->Flush (Ehc->PciIo);\r | |
1070 | gBS->RestoreTPL (OldTpl);\r | |
1071 | \r | |
1072 | return Status;\r | |
1073 | }\r | |
1074 | \r | |
1075 | \r | |
1076 | /**\r | |
1077 | Submits synchronous interrupt transfer to an interrupt endpoint\r | |
1078 | of a USB device.\r | |
1079 | \r | |
78c2ffb5 | 1080 | @param This This EFI_USB2_HC_PROTOCOL instance.\r |
1081 | @param DeviceAddress Target device address.\r | |
1082 | @param EndPointAddress Endpoint number and its direction encoded in bit 7\r | |
1083 | @param DeviceSpeed Indicates device speed.\r | |
1084 | @param MaximumPacketLength Maximum packet size the target endpoint is capable\r | |
1085 | of sending or receiving.\r | |
1086 | @param Data Buffer of data that will be transmitted to USB\r | |
1087 | device or received from USB device.\r | |
1088 | @param DataLength On input, the size, in bytes, of the data buffer; On\r | |
1089 | output, the number of bytes transferred.\r | |
1090 | @param DataToggle On input, the initial data toggle to use; on output,\r | |
1091 | it is updated to indicate the next data toggle.\r | |
1092 | @param TimeOut Maximum time, in second, to complete.\r | |
1093 | @param Translator Transaction translator to use.\r | |
1094 | @param TransferResult Variable to receive the transfer result.\r | |
1095 | \r | |
1096 | @return EFI_SUCCESS The transfer was completed successfully.\r | |
1097 | @return EFI_OUT_OF_RESOURCES The transfer failed due to lack of resource.\r | |
1098 | @return EFI_INVALID_PARAMETER Some parameters are invalid.\r | |
1099 | @return EFI_TIMEOUT The transfer failed due to timeout.\r | |
1100 | @return EFI_DEVICE_ERROR The failed due to host controller or device error\r | |
913cb9dc | 1101 | \r |
1102 | **/\r | |
913cb9dc | 1103 | EFI_STATUS\r |
1104 | EFIAPI\r | |
1105 | EhcSyncInterruptTransfer (\r | |
1106 | IN EFI_USB2_HC_PROTOCOL *This,\r | |
1107 | IN UINT8 DeviceAddress,\r | |
1108 | IN UINT8 EndPointAddress,\r | |
1109 | IN UINT8 DeviceSpeed,\r | |
1110 | IN UINTN MaximumPacketLength,\r | |
1111 | IN OUT VOID *Data,\r | |
1112 | IN OUT UINTN *DataLength,\r | |
1113 | IN OUT UINT8 *DataToggle,\r | |
1114 | IN UINTN TimeOut,\r | |
1115 | IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,\r | |
1116 | OUT UINT32 *TransferResult\r | |
1117 | )\r | |
1118 | {\r | |
1119 | USB2_HC_DEV *Ehc;\r | |
1120 | EFI_TPL OldTpl;\r | |
1121 | URB *Urb;\r | |
1122 | EFI_STATUS Status;\r | |
1123 | \r | |
1124 | //\r | |
1125 | // Validates parameters\r | |
1126 | //\r | |
1127 | if ((DataLength == NULL) || (*DataLength == 0) ||\r | |
1128 | (Data == NULL) || (TransferResult == NULL)) {\r | |
1129 | return EFI_INVALID_PARAMETER;\r | |
1130 | }\r | |
1131 | \r | |
e172ea16 | 1132 | if (!EHCI_IS_DATAIN (EndPointAddress)) {\r |
913cb9dc | 1133 | return EFI_INVALID_PARAMETER;\r |
1134 | }\r | |
1135 | \r | |
1136 | if ((*DataToggle != 1) && (*DataToggle != 0)) {\r | |
1137 | return EFI_INVALID_PARAMETER;\r | |
1138 | }\r | |
1139 | \r | |
1140 | if (((DeviceSpeed == EFI_USB_SPEED_LOW) && (MaximumPacketLength != 8)) ||\r | |
1141 | ((DeviceSpeed == EFI_USB_SPEED_FULL) && (MaximumPacketLength > 64)) ||\r | |
1142 | ((DeviceSpeed == EFI_USB_SPEED_HIGH) && (MaximumPacketLength > 3072))) {\r | |
1143 | return EFI_INVALID_PARAMETER;\r | |
1144 | }\r | |
1145 | \r | |
1146 | OldTpl = gBS->RaiseTPL (EHC_TPL);\r | |
1147 | Ehc = EHC_FROM_THIS (This);\r | |
1148 | \r | |
1149 | *TransferResult = EFI_USB_ERR_SYSTEM;\r | |
1150 | Status = EFI_DEVICE_ERROR;\r | |
1151 | \r | |
1152 | if (EhcIsHalt (Ehc) || EhcIsSysError (Ehc)) {\r | |
1c619535 | 1153 | DEBUG ((EFI_D_ERROR, "EhcSyncInterruptTransfer: HC is halt\n"));\r |
913cb9dc | 1154 | \r |
1155 | EhcAckAllInterrupt (Ehc);\r | |
1156 | goto ON_EXIT;\r | |
1157 | }\r | |
1158 | \r | |
1159 | EhcAckAllInterrupt (Ehc);\r | |
1160 | \r | |
1161 | Urb = EhcCreateUrb (\r | |
1162 | Ehc,\r | |
1163 | DeviceAddress,\r | |
1164 | EndPointAddress,\r | |
1165 | DeviceSpeed,\r | |
1166 | *DataToggle,\r | |
1167 | MaximumPacketLength,\r | |
1168 | Translator,\r | |
1169 | EHC_INT_TRANSFER_SYNC,\r | |
1170 | NULL,\r | |
1171 | Data,\r | |
1172 | *DataLength,\r | |
1173 | NULL,\r | |
1174 | NULL,\r | |
1175 | 1\r | |
1176 | );\r | |
1177 | \r | |
1178 | if (Urb == NULL) {\r | |
1c619535 | 1179 | DEBUG ((EFI_D_ERROR, "EhcSyncInterruptTransfer: failed to create URB\n"));\r |
913cb9dc | 1180 | \r |
1181 | Status = EFI_OUT_OF_RESOURCES;\r | |
1182 | goto ON_EXIT;\r | |
1183 | }\r | |
1184 | \r | |
1185 | EhcLinkQhToPeriod (Ehc, Urb->Qh);\r | |
1186 | Status = EhcExecTransfer (Ehc, Urb, TimeOut);\r | |
1187 | EhcUnlinkQhFromPeriod (Ehc, Urb->Qh);\r | |
1188 | \r | |
1189 | *TransferResult = Urb->Result;\r | |
1190 | *DataLength = Urb->Completed;\r | |
1191 | *DataToggle = Urb->DataToggle;\r | |
1192 | \r | |
1193 | if (*TransferResult == EFI_USB_NOERROR) {\r | |
1194 | Status = EFI_SUCCESS;\r | |
1195 | }\r | |
1196 | \r | |
1197 | ON_EXIT:\r | |
1198 | Ehc->PciIo->Flush (Ehc->PciIo);\r | |
1199 | gBS->RestoreTPL (OldTpl);\r | |
1200 | \r | |
1201 | if (EFI_ERROR (Status)) {\r | |
1c619535 | 1202 | DEBUG ((EFI_D_ERROR, "EhcSyncInterruptTransfer: error - %r, transfer - %x\n", Status, *TransferResult));\r |
913cb9dc | 1203 | }\r |
1204 | \r | |
1205 | return Status;\r | |
1206 | }\r | |
1207 | \r | |
1208 | \r | |
1209 | /**\r | |
1210 | Submits isochronous transfer to a target USB device.\r | |
1211 | \r | |
1212 | @param This This EFI_USB2_HC_PROTOCOL instance.\r | |
78c2ffb5 | 1213 | @param DeviceAddress Target device address.\r |
1214 | @param EndPointAddress End point address with its direction.\r | |
913cb9dc | 1215 | @param DeviceSpeed Device speed, Low speed device doesn't support this\r |
1216 | type.\r | |
1217 | @param MaximumPacketLength Maximum packet size that the endpoint is capable of\r | |
1218 | sending or receiving.\r | |
1219 | @param DataBuffersNumber Number of data buffers prepared for the transfer.\r | |
1220 | @param Data Array of pointers to the buffers of data that will\r | |
1221 | be transmitted to USB device or received from USB\r | |
1222 | device.\r | |
78c2ffb5 | 1223 | @param DataLength The size, in bytes, of the data buffer.\r |
913cb9dc | 1224 | @param Translator Transaction translator to use.\r |
78c2ffb5 | 1225 | @param TransferResult Variable to receive the transfer result.\r |
913cb9dc | 1226 | \r |
78c2ffb5 | 1227 | @return EFI_UNSUPPORTED Isochronous transfer is unsupported.\r |
913cb9dc | 1228 | \r |
1229 | **/\r | |
913cb9dc | 1230 | EFI_STATUS\r |
1231 | EFIAPI\r | |
1232 | EhcIsochronousTransfer (\r | |
1233 | IN EFI_USB2_HC_PROTOCOL *This,\r | |
1234 | IN UINT8 DeviceAddress,\r | |
1235 | IN UINT8 EndPointAddress,\r | |
1236 | IN UINT8 DeviceSpeed,\r | |
1237 | IN UINTN MaximumPacketLength,\r | |
1238 | IN UINT8 DataBuffersNumber,\r | |
1239 | IN OUT VOID *Data[EFI_USB_MAX_ISO_BUFFER_NUM],\r | |
1240 | IN UINTN DataLength,\r | |
1241 | IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,\r | |
1242 | OUT UINT32 *TransferResult\r | |
1243 | )\r | |
1244 | {\r | |
1245 | return EFI_UNSUPPORTED;\r | |
1246 | }\r | |
1247 | \r | |
1248 | \r | |
1249 | /**\r | |
1250 | Submits Async isochronous transfer to a target USB device.\r | |
1251 | \r | |
1252 | @param This This EFI_USB2_HC_PROTOCOL instance.\r | |
78c2ffb5 | 1253 | @param DeviceAddress Target device address.\r |
1254 | @param EndPointAddress End point address with its direction.\r | |
913cb9dc | 1255 | @param DeviceSpeed Device speed, Low speed device doesn't support this\r |
1256 | type.\r | |
1257 | @param MaximumPacketLength Maximum packet size that the endpoint is capable of\r | |
1258 | sending or receiving.\r | |
1259 | @param DataBuffersNumber Number of data buffers prepared for the transfer.\r | |
1260 | @param Data Array of pointers to the buffers of data that will\r | |
1261 | be transmitted to USB device or received from USB\r | |
1262 | device.\r | |
78c2ffb5 | 1263 | @param DataLength The size, in bytes, of the data buffer.\r |
913cb9dc | 1264 | @param Translator Transaction translator to use.\r |
78c2ffb5 | 1265 | @param IsochronousCallBack Function to be called when the transfer complete.\r |
913cb9dc | 1266 | @param Context Context passed to the call back function as\r |
78c2ffb5 | 1267 | parameter.\r |
913cb9dc | 1268 | \r |
78c2ffb5 | 1269 | @return EFI_UNSUPPORTED Isochronous transfer isn't supported.\r |
913cb9dc | 1270 | \r |
1271 | **/\r | |
913cb9dc | 1272 | EFI_STATUS\r |
1273 | EFIAPI\r | |
1274 | EhcAsyncIsochronousTransfer (\r | |
1275 | IN EFI_USB2_HC_PROTOCOL *This,\r | |
1276 | IN UINT8 DeviceAddress,\r | |
1277 | IN UINT8 EndPointAddress,\r | |
1278 | IN UINT8 DeviceSpeed,\r | |
1279 | IN UINTN MaximumPacketLength,\r | |
1280 | IN UINT8 DataBuffersNumber,\r | |
1281 | IN OUT VOID *Data[EFI_USB_MAX_ISO_BUFFER_NUM],\r | |
1282 | IN UINTN DataLength,\r | |
1283 | IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Translator,\r | |
1284 | IN EFI_ASYNC_USB_TRANSFER_CALLBACK IsochronousCallBack,\r | |
1285 | IN VOID *Context\r | |
1286 | )\r | |
1287 | {\r | |
1288 | return EFI_UNSUPPORTED;\r | |
1289 | }\r | |
1290 | \r | |
78c2ffb5 | 1291 | /**\r |
1292 | Entry point for EFI drivers.\r | |
1293 | \r | |
1294 | @param ImageHandle EFI_HANDLE.\r | |
1295 | @param SystemTable EFI_SYSTEM_TABLE.\r | |
1296 | \r | |
1297 | @return EFI_SUCCESS Success.\r | |
1298 | EFI_DEVICE_ERROR Fail.\r | |
1299 | \r | |
1300 | **/\r | |
913cb9dc | 1301 | EFI_STATUS\r |
1302 | EFIAPI\r | |
1303 | EhcDriverEntryPoint (\r | |
1304 | IN EFI_HANDLE ImageHandle,\r | |
1305 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
1306 | )\r | |
913cb9dc | 1307 | {\r |
f527bce3 | 1308 | return EfiLibInstallDriverBindingComponentName2 (\r |
913cb9dc | 1309 | ImageHandle,\r |
1310 | SystemTable,\r | |
1311 | &gEhciDriverBinding,\r | |
1312 | ImageHandle,\r | |
1313 | &gEhciComponentName,\r | |
f527bce3 | 1314 | &gEhciComponentName2\r |
913cb9dc | 1315 | );\r |
1316 | }\r | |
1317 | \r | |
1318 | \r | |
1319 | /**\r | |
1320 | Test to see if this driver supports ControllerHandle. Any\r | |
1321 | ControllerHandle that has Usb2HcProtocol installed will\r | |
1322 | be supported.\r | |
1323 | \r | |
1324 | @param This Protocol instance pointer.\r | |
78c2ffb5 | 1325 | @param Controller Handle of device to test.\r |
1326 | @param RemainingDevicePath Not used.\r | |
913cb9dc | 1327 | \r |
78c2ffb5 | 1328 | @return EFI_SUCCESS This driver supports this device.\r |
1329 | @return EFI_UNSUPPORTED This driver does not support this device.\r | |
913cb9dc | 1330 | \r |
1331 | **/\r | |
1332 | EFI_STATUS\r | |
1333 | EFIAPI\r | |
1334 | EhcDriverBindingSupported (\r | |
1335 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
1336 | IN EFI_HANDLE Controller,\r | |
1337 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
1338 | )\r | |
1339 | {\r | |
1340 | EFI_STATUS Status;\r | |
1341 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
1342 | USB_CLASSC UsbClassCReg;\r | |
1343 | \r | |
1344 | //\r | |
1345 | // Test whether there is PCI IO Protocol attached on the controller handle.\r | |
1346 | //\r | |
1347 | Status = gBS->OpenProtocol (\r | |
1348 | Controller,\r | |
1349 | &gEfiPciIoProtocolGuid,\r | |
c52fa98c | 1350 | (VOID **) &PciIo,\r |
913cb9dc | 1351 | This->DriverBindingHandle,\r |
1352 | Controller,\r | |
1353 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
1354 | );\r | |
1355 | \r | |
1356 | if (EFI_ERROR (Status)) {\r | |
1357 | return EFI_UNSUPPORTED;\r | |
1358 | }\r | |
1359 | \r | |
1360 | Status = PciIo->Pci.Read (\r | |
1361 | PciIo,\r | |
1362 | EfiPciIoWidthUint8,\r | |
a261044c | 1363 | PCI_CLASSCODE_OFFSET,\r |
913cb9dc | 1364 | sizeof (USB_CLASSC) / sizeof (UINT8),\r |
1365 | &UsbClassCReg\r | |
1366 | );\r | |
1367 | \r | |
1368 | if (EFI_ERROR (Status)) {\r | |
1369 | Status = EFI_UNSUPPORTED;\r | |
1370 | goto ON_EXIT;\r | |
1371 | }\r | |
1372 | \r | |
1373 | //\r | |
1374 | // Test whether the controller belongs to Ehci type\r | |
1375 | //\r | |
cd92e3fb | 1376 | if ((UsbClassCReg.BaseCode != PCI_CLASS_SERIAL) || (UsbClassCReg.SubClassCode != PCI_CLASS_SERIAL_USB)\r |
1ccdbf2a | 1377 | || ((UsbClassCReg.ProgInterface != PCI_IF_EHCI) && (UsbClassCReg.ProgInterface !=PCI_IF_UHCI))) {\r |
913cb9dc | 1378 | \r |
1379 | Status = EFI_UNSUPPORTED;\r | |
1380 | }\r | |
1381 | \r | |
1382 | ON_EXIT:\r | |
1383 | gBS->CloseProtocol (\r | |
1384 | Controller,\r | |
1385 | &gEfiPciIoProtocolGuid,\r | |
1386 | This->DriverBindingHandle,\r | |
1387 | Controller\r | |
1388 | );\r | |
1389 | \r | |
1390 | return Status;\r | |
1391 | }\r | |
1392 | \r | |
1393 | \r | |
1394 | /**\r | |
78c2ffb5 | 1395 | Create and initialize a USB2_HC_DEV.\r |
913cb9dc | 1396 | \r |
78c2ffb5 | 1397 | @param PciIo The PciIo on this device.\r |
1398 | @param OriginalPciAttributes Original PCI attributes.\r | |
913cb9dc | 1399 | \r |
78c2ffb5 | 1400 | @return The allocated and initialized USB2_HC_DEV structure if created,\r |
1401 | otherwise NULL.\r | |
913cb9dc | 1402 | \r |
1403 | **/\r | |
913cb9dc | 1404 | USB2_HC_DEV *\r |
1405 | EhcCreateUsb2Hc (\r | |
68246fa8 | 1406 | IN EFI_PCI_IO_PROTOCOL *PciIo,\r |
1407 | IN UINT64 OriginalPciAttributes\r | |
913cb9dc | 1408 | )\r |
1409 | {\r | |
1410 | USB2_HC_DEV *Ehc;\r | |
1411 | EFI_STATUS Status;\r | |
1412 | \r | |
1413 | Ehc = AllocateZeroPool (sizeof (USB2_HC_DEV));\r | |
1414 | \r | |
1415 | if (Ehc == NULL) {\r | |
1416 | return NULL;\r | |
1417 | }\r | |
1418 | \r | |
1419 | //\r | |
1420 | // Init EFI_USB2_HC_PROTOCOL interface and private data structure\r | |
1421 | //\r | |
1422 | Ehc->Signature = USB2_HC_DEV_SIGNATURE;\r | |
1423 | \r | |
1424 | Ehc->Usb2Hc.GetCapability = EhcGetCapability;\r | |
1425 | Ehc->Usb2Hc.Reset = EhcReset;\r | |
1426 | Ehc->Usb2Hc.GetState = EhcGetState;\r | |
1427 | Ehc->Usb2Hc.SetState = EhcSetState;\r | |
1428 | Ehc->Usb2Hc.ControlTransfer = EhcControlTransfer;\r | |
1429 | Ehc->Usb2Hc.BulkTransfer = EhcBulkTransfer;\r | |
1430 | Ehc->Usb2Hc.AsyncInterruptTransfer = EhcAsyncInterruptTransfer;\r | |
1431 | Ehc->Usb2Hc.SyncInterruptTransfer = EhcSyncInterruptTransfer;\r | |
1432 | Ehc->Usb2Hc.IsochronousTransfer = EhcIsochronousTransfer;\r | |
1433 | Ehc->Usb2Hc.AsyncIsochronousTransfer = EhcAsyncIsochronousTransfer;\r | |
1434 | Ehc->Usb2Hc.GetRootHubPortStatus = EhcGetRootHubPortStatus;\r | |
1435 | Ehc->Usb2Hc.SetRootHubPortFeature = EhcSetRootHubPortFeature;\r | |
1436 | Ehc->Usb2Hc.ClearRootHubPortFeature = EhcClearRootHubPortFeature;\r | |
b4c24e2d | 1437 | Ehc->Usb2Hc.MajorRevision = 0x2;\r |
1438 | Ehc->Usb2Hc.MinorRevision = 0x0;\r | |
913cb9dc | 1439 | \r |
68246fa8 | 1440 | Ehc->PciIo = PciIo;\r |
1441 | Ehc->OriginalPciAttributes = OriginalPciAttributes;\r | |
913cb9dc | 1442 | \r |
1443 | InitializeListHead (&Ehc->AsyncIntTransfers);\r | |
1444 | \r | |
1445 | Ehc->HcStructParams = EhcReadCapRegister (Ehc, EHC_HCSPARAMS_OFFSET);\r | |
1446 | Ehc->HcCapParams = EhcReadCapRegister (Ehc, EHC_HCCPARAMS_OFFSET);\r | |
1447 | Ehc->CapLen = EhcReadCapRegister (Ehc, EHC_CAPLENGTH_OFFSET) & 0x0FF;\r | |
1448 | \r | |
1c619535 | 1449 | DEBUG ((EFI_D_INFO, "EhcCreateUsb2Hc: capability length %d\n", Ehc->CapLen));\r |
913cb9dc | 1450 | \r |
68bb5ce7 | 1451 | //\r |
1452 | // EHCI Controllers with a CapLen of 0 are ignored.\r | |
1453 | //\r | |
1454 | if (Ehc->CapLen == 0) {\r | |
1455 | gBS->FreePool (Ehc);\r | |
1456 | return NULL;\r | |
1457 | }\r | |
1458 | \r | |
913cb9dc | 1459 | //\r |
1460 | // Create AsyncRequest Polling Timer\r | |
1461 | //\r | |
1462 | Status = gBS->CreateEvent (\r | |
1463 | EVT_TIMER | EVT_NOTIFY_SIGNAL,\r | |
1464 | TPL_CALLBACK,\r | |
597f4ee2 | 1465 | EhcMonitorAsyncRequests,\r |
913cb9dc | 1466 | Ehc,\r |
1467 | &Ehc->PollTimer\r | |
1468 | );\r | |
1469 | \r | |
1470 | if (EFI_ERROR (Status)) {\r | |
1471 | gBS->FreePool (Ehc);\r | |
1472 | return NULL;\r | |
1473 | }\r | |
1474 | \r | |
1475 | return Ehc;\r | |
1476 | }\r | |
1477 | \r | |
0428a6cb | 1478 | /**\r |
1479 | One notified function to stop the Host Controller when gBS->ExitBootServices() called.\r | |
1480 | \r | |
1481 | @param Event Pointer to this event\r | |
1482 | @param Context Event hanlder private data\r | |
1483 | \r | |
1484 | **/\r | |
1485 | VOID\r | |
1486 | EFIAPI\r | |
1487 | EhcExitBootService (\r | |
1488 | EFI_EVENT Event,\r | |
1489 | VOID *Context\r | |
1490 | )\r | |
1491 | \r | |
1492 | {\r | |
1493 | USB2_HC_DEV *Ehc;\r | |
1494 | \r | |
1495 | Ehc = (USB2_HC_DEV *) Context;\r | |
1496 | \r | |
1497 | //\r | |
2dda77a6 | 1498 | // Reset the Host Controller\r |
0428a6cb | 1499 | //\r |
2dda77a6 | 1500 | EhcResetHC (Ehc, EHC_RESET_TIMEOUT);\r |
0428a6cb | 1501 | }\r |
1502 | \r | |
913cb9dc | 1503 | \r |
1504 | /**\r | |
78c2ffb5 | 1505 | Starting the Usb EHCI Driver.\r |
913cb9dc | 1506 | \r |
1507 | @param This Protocol instance pointer.\r | |
78c2ffb5 | 1508 | @param Controller Handle of device to test.\r |
1509 | @param RemainingDevicePath Not used.\r | |
913cb9dc | 1510 | \r |
78c2ffb5 | 1511 | @return EFI_SUCCESS supports this device.\r |
1512 | @return EFI_UNSUPPORTED do not support this device.\r | |
1513 | @return EFI_DEVICE_ERROR cannot be started due to device Error.\r | |
1514 | @return EFI_OUT_OF_RESOURCES cannot allocate resources.\r | |
913cb9dc | 1515 | \r |
1516 | **/\r | |
1517 | EFI_STATUS\r | |
1518 | EFIAPI\r | |
1519 | EhcDriverBindingStart (\r | |
1520 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
1521 | IN EFI_HANDLE Controller,\r | |
1522 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
1523 | )\r | |
1524 | {\r | |
1525 | EFI_STATUS Status;\r | |
1526 | USB2_HC_DEV *Ehc;\r | |
1527 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
cd92e3fb | 1528 | EFI_PCI_IO_PROTOCOL *Instance;\r |
96f6af14 | 1529 | UINT64 Supports;\r |
68246fa8 | 1530 | UINT64 OriginalPciAttributes;\r |
6a6d955c | 1531 | BOOLEAN PciAttributesSaved;\r |
cd92e3fb | 1532 | USB_CLASSC UsbClassCReg;\r |
1533 | EFI_HANDLE *HandleBuffer;\r | |
1534 | UINTN NumberOfHandles;\r | |
1535 | UINTN Index;\r | |
1536 | UINTN UhciSegmentNumber;\r | |
1537 | UINTN UhciBusNumber;\r | |
1538 | UINTN UhciDeviceNumber;\r | |
1539 | UINTN UhciFunctionNumber;\r | |
1540 | UINTN EhciSegmentNumber;\r | |
1541 | UINTN EhciBusNumber;\r | |
1542 | UINTN EhciDeviceNumber;\r | |
1543 | UINTN EhciFunctionNumber;\r | |
913cb9dc | 1544 | \r |
1545 | //\r | |
1546 | // Open the PciIo Protocol, then enable the USB host controller\r | |
1547 | //\r | |
1548 | Status = gBS->OpenProtocol (\r | |
1549 | Controller,\r | |
1550 | &gEfiPciIoProtocolGuid,\r | |
c52fa98c | 1551 | (VOID **) &PciIo,\r |
913cb9dc | 1552 | This->DriverBindingHandle,\r |
1553 | Controller,\r | |
1554 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
1555 | );\r | |
1556 | \r | |
1557 | if (EFI_ERROR (Status)) {\r | |
cd92e3fb | 1558 | return Status;\r |
913cb9dc | 1559 | }\r |
1560 | \r | |
6a6d955c | 1561 | PciAttributesSaved = FALSE;\r |
68246fa8 | 1562 | //\r |
1563 | // Save original PCI attributes\r | |
1564 | //\r | |
1565 | Status = PciIo->Attributes (\r | |
1566 | PciIo,\r | |
1567 | EfiPciIoAttributeOperationGet,\r | |
1568 | 0,\r | |
1569 | &OriginalPciAttributes\r | |
1570 | );\r | |
1571 | \r | |
1572 | if (EFI_ERROR (Status)) {\r | |
6a6d955c | 1573 | goto CLOSE_PCIIO;\r |
68246fa8 | 1574 | }\r |
6a6d955c | 1575 | PciAttributesSaved = TRUE;\r |
68246fa8 | 1576 | \r |
913cb9dc | 1577 | Status = PciIo->Attributes (\r |
1578 | PciIo,\r | |
96f6af14 LG |
1579 | EfiPciIoAttributeOperationSupported,\r |
1580 | 0,\r | |
1581 | &Supports\r | |
913cb9dc | 1582 | );\r |
96f6af14 LG |
1583 | if (!EFI_ERROR (Status)) {\r |
1584 | Supports &= EFI_PCI_DEVICE_ENABLE;\r | |
1585 | Status = PciIo->Attributes (\r | |
1586 | PciIo,\r | |
1587 | EfiPciIoAttributeOperationEnable,\r | |
1588 | Supports,\r | |
1589 | NULL\r | |
1590 | );\r | |
1591 | }\r | |
913cb9dc | 1592 | \r |
1593 | if (EFI_ERROR (Status)) {\r | |
1c619535 | 1594 | DEBUG ((EFI_D_ERROR, "EhcDriverBindingStart: failed to enable controller\n"));\r |
913cb9dc | 1595 | goto CLOSE_PCIIO;\r |
1596 | }\r | |
1597 | \r | |
ba19956a | 1598 | //\r |
1599 | // Get the Pci device class code.\r | |
1600 | //\r | |
cd92e3fb | 1601 | Status = PciIo->Pci.Read (\r |
1602 | PciIo,\r | |
1603 | EfiPciIoWidthUint8,\r | |
a261044c | 1604 | PCI_CLASSCODE_OFFSET,\r |
cd92e3fb | 1605 | sizeof (USB_CLASSC) / sizeof (UINT8),\r |
1606 | &UsbClassCReg\r | |
1607 | );\r | |
1608 | \r | |
1609 | if (EFI_ERROR (Status)) {\r | |
1610 | Status = EFI_UNSUPPORTED;\r | |
1611 | goto CLOSE_PCIIO;\r | |
1612 | }\r | |
ba19956a | 1613 | //\r |
1614 | // determine if the device is UHCI host controller or not. If yes, then find out the \r | |
1615 | // companion usb ehci host controller and force EHCI driver get attached to it before\r | |
1616 | // UHCI driver attaches to UHCI host controller.\r | |
1617 | //\r | |
1ccdbf2a | 1618 | if ((UsbClassCReg.ProgInterface == PCI_IF_UHCI) &&\r |
cd92e3fb | 1619 | (UsbClassCReg.BaseCode == PCI_CLASS_SERIAL) && \r |
1620 | (UsbClassCReg.SubClassCode == PCI_CLASS_SERIAL_USB)) {\r | |
1621 | Status = PciIo->GetLocation (\r | |
1622 | PciIo,\r | |
1623 | &UhciSegmentNumber,\r | |
1624 | &UhciBusNumber,\r | |
1625 | &UhciDeviceNumber,\r | |
1626 | &UhciFunctionNumber\r | |
1627 | );\r | |
1628 | if (EFI_ERROR (Status)) {\r | |
1629 | goto CLOSE_PCIIO;\r | |
1630 | }\r | |
1631 | \r | |
1632 | Status = gBS->LocateHandleBuffer (\r | |
1633 | ByProtocol,\r | |
1634 | &gEfiPciIoProtocolGuid,\r | |
1635 | NULL,\r | |
1636 | &NumberOfHandles,\r | |
1637 | &HandleBuffer\r | |
1638 | );\r | |
1639 | if (EFI_ERROR (Status)) {\r | |
1640 | goto CLOSE_PCIIO;\r | |
1641 | }\r | |
1642 | \r | |
1643 | for (Index = 0; Index < NumberOfHandles; Index++) {\r | |
1644 | //\r | |
1645 | // Get the device path on this handle\r | |
1646 | //\r | |
1647 | Status = gBS->HandleProtocol (\r | |
1648 | HandleBuffer[Index],\r | |
1649 | &gEfiPciIoProtocolGuid,\r | |
1650 | (VOID **)&Instance\r | |
1651 | );\r | |
1652 | ASSERT_EFI_ERROR (Status);\r | |
1653 | \r | |
1654 | Status = Instance->Pci.Read (\r | |
1655 | Instance,\r | |
1656 | EfiPciIoWidthUint8,\r | |
a261044c | 1657 | PCI_CLASSCODE_OFFSET,\r |
cd92e3fb | 1658 | sizeof (USB_CLASSC) / sizeof (UINT8),\r |
1659 | &UsbClassCReg\r | |
1660 | );\r | |
1661 | \r | |
1662 | if (EFI_ERROR (Status)) {\r | |
1663 | Status = EFI_UNSUPPORTED;\r | |
1664 | goto CLOSE_PCIIO;\r | |
1665 | }\r | |
1666 | \r | |
1ccdbf2a | 1667 | if ((UsbClassCReg.ProgInterface == PCI_IF_EHCI) &&\r |
cd92e3fb | 1668 | (UsbClassCReg.BaseCode == PCI_CLASS_SERIAL) && \r |
1669 | (UsbClassCReg.SubClassCode == PCI_CLASS_SERIAL_USB)) {\r | |
1670 | Status = Instance->GetLocation (\r | |
1671 | Instance,\r | |
1672 | &EhciSegmentNumber,\r | |
1673 | &EhciBusNumber,\r | |
1674 | &EhciDeviceNumber,\r | |
1675 | &EhciFunctionNumber\r | |
1676 | );\r | |
1677 | if (EFI_ERROR (Status)) {\r | |
1678 | goto CLOSE_PCIIO;\r | |
1679 | }\r | |
ba19956a | 1680 | //\r |
1681 | // Currently, the judgment on the companion usb host controller is through the\r | |
1682 | // same bus number, which may vary on different platform.\r | |
1683 | //\r | |
cd92e3fb | 1684 | if (EhciBusNumber == UhciBusNumber) {\r |
1685 | gBS->CloseProtocol (\r | |
1686 | Controller,\r | |
1687 | &gEfiPciIoProtocolGuid,\r | |
1688 | This->DriverBindingHandle,\r | |
1689 | Controller\r | |
1690 | );\r | |
1691 | EhcDriverBindingStart(This, HandleBuffer[Index], NULL);\r | |
1692 | }\r | |
1693 | }\r | |
1694 | }\r | |
1695 | Status = EFI_NOT_FOUND;\r | |
1696 | goto CLOSE_PCIIO;\r | |
1697 | }\r | |
1698 | \r | |
913cb9dc | 1699 | //\r |
1700 | // Create then install USB2_HC_PROTOCOL\r | |
1701 | //\r | |
68246fa8 | 1702 | Ehc = EhcCreateUsb2Hc (PciIo, OriginalPciAttributes);\r |
913cb9dc | 1703 | \r |
1704 | if (Ehc == NULL) {\r | |
1c619535 | 1705 | DEBUG ((EFI_D_ERROR, "EhcDriverBindingStart: failed to create USB2_HC\n"));\r |
913cb9dc | 1706 | \r |
1707 | Status = EFI_OUT_OF_RESOURCES;\r | |
1708 | goto CLOSE_PCIIO;\r | |
1709 | }\r | |
1710 | \r | |
1711 | Status = gBS->InstallProtocolInterface (\r | |
1712 | &Controller,\r | |
1713 | &gEfiUsb2HcProtocolGuid,\r | |
1714 | EFI_NATIVE_INTERFACE,\r | |
1715 | &Ehc->Usb2Hc\r | |
1716 | );\r | |
1717 | \r | |
1718 | if (EFI_ERROR (Status)) {\r | |
1c619535 | 1719 | DEBUG ((EFI_D_ERROR, "EhcDriverBindingStart: failed to install USB2_HC Protocol\n"));\r |
913cb9dc | 1720 | goto FREE_POOL;\r |
1721 | }\r | |
1722 | \r | |
1723 | //\r | |
c39c3e21 | 1724 | // Robustnesss improvement such as for Duet platform\r |
f0a83bb3 | 1725 | // Default is not required.\r |
913cb9dc | 1726 | //\r |
cc582cff | 1727 | if (FeaturePcdGet (PcdTurnOffUsbLegacySupport)) {\r |
dd4047a5 | 1728 | EhcClearLegacySupport (Ehc);\r |
1729 | }\r | |
41e8ff27 | 1730 | EhcResetHC (Ehc, EHC_RESET_TIMEOUT);\r |
913cb9dc | 1731 | \r |
1732 | Status = EhcInitHC (Ehc);\r | |
1733 | \r | |
1734 | if (EFI_ERROR (Status)) {\r | |
1c619535 | 1735 | DEBUG ((EFI_D_ERROR, "EhcDriverBindingStart: failed to init host controller\n"));\r |
913cb9dc | 1736 | goto UNINSTALL_USBHC;\r |
1737 | }\r | |
1738 | \r | |
1739 | //\r | |
1740 | // Start the asynchronous interrupt monitor\r | |
1741 | //\r | |
41e8ff27 | 1742 | Status = gBS->SetTimer (Ehc->PollTimer, TimerPeriodic, EHC_ASYNC_POLL_INTERVAL);\r |
913cb9dc | 1743 | \r |
1744 | if (EFI_ERROR (Status)) {\r | |
1c619535 | 1745 | DEBUG ((EFI_D_ERROR, "EhcDriverBindingStart: failed to start async interrupt monitor\n"));\r |
913cb9dc | 1746 | \r |
41e8ff27 | 1747 | EhcHaltHC (Ehc, EHC_GENERIC_TIMEOUT);\r |
913cb9dc | 1748 | goto UNINSTALL_USBHC;\r |
1749 | }\r | |
1750 | \r | |
0428a6cb | 1751 | //\r |
1752 | // Create event to stop the HC when exit boot service.\r | |
1753 | //\r | |
1754 | Status = gBS->CreateEventEx (\r | |
1755 | EVT_NOTIFY_SIGNAL,\r | |
1756 | TPL_NOTIFY,\r | |
1757 | EhcExitBootService,\r | |
1758 | Ehc,\r | |
1759 | &gEfiEventExitBootServicesGuid,\r | |
1760 | &Ehc->ExitBootServiceEvent\r | |
1761 | );\r | |
1762 | if (EFI_ERROR (Status)) {\r | |
1763 | goto UNINSTALL_USBHC;\r | |
1764 | }\r | |
1765 | \r | |
913cb9dc | 1766 | //\r |
1767 | // Install the component name protocol, don't fail the start\r | |
1768 | // because of something for display.\r | |
1769 | //\r | |
f527bce3 | 1770 | AddUnicodeString2 (\r |
913cb9dc | 1771 | "eng",\r |
1772 | gEhciComponentName.SupportedLanguages,\r | |
1773 | &Ehc->ControllerNameTable,\r | |
f527bce3 | 1774 | L"Enhanced Host Controller (USB 2.0)",\r |
1775 | TRUE\r | |
913cb9dc | 1776 | );\r |
f527bce3 | 1777 | AddUnicodeString2 (\r |
1778 | "en",\r | |
1779 | gEhciComponentName2.SupportedLanguages,\r | |
1780 | &Ehc->ControllerNameTable,\r | |
1781 | L"Enhanced Host Controller (USB 2.0)",\r | |
1782 | FALSE\r | |
1783 | );\r | |
1784 | \r | |
913cb9dc | 1785 | \r |
0e549d5b | 1786 | DEBUG ((EFI_D_INFO, "EhcDriverBindingStart: EHCI started for controller @ %p\n", Controller));\r |
913cb9dc | 1787 | return EFI_SUCCESS;\r |
1788 | \r | |
1789 | UNINSTALL_USBHC:\r | |
1790 | gBS->UninstallProtocolInterface (\r | |
1791 | Controller,\r | |
1792 | &gEfiUsb2HcProtocolGuid,\r | |
1793 | &Ehc->Usb2Hc\r | |
1794 | );\r | |
1795 | \r | |
1796 | FREE_POOL:\r | |
1797 | EhcFreeSched (Ehc);\r | |
1798 | gBS->CloseEvent (Ehc->PollTimer);\r | |
1799 | gBS->FreePool (Ehc);\r | |
1800 | \r | |
1801 | CLOSE_PCIIO:\r | |
a92d4e8a | 1802 | if (PciAttributesSaved) {\r |
6a6d955c | 1803 | //\r |
1804 | // Restore original PCI attributes\r | |
1805 | //\r | |
1806 | PciIo->Attributes (\r | |
1807 | PciIo,\r | |
1808 | EfiPciIoAttributeOperationSet,\r | |
1809 | OriginalPciAttributes,\r | |
1810 | NULL\r | |
1811 | );\r | |
1812 | }\r | |
68246fa8 | 1813 | \r |
913cb9dc | 1814 | gBS->CloseProtocol (\r |
1815 | Controller,\r | |
1816 | &gEfiPciIoProtocolGuid,\r | |
1817 | This->DriverBindingHandle,\r | |
1818 | Controller\r | |
1819 | );\r | |
1820 | \r | |
1821 | return Status;\r | |
1822 | }\r | |
1823 | \r | |
1824 | \r | |
1825 | /**\r | |
1826 | Stop this driver on ControllerHandle. Support stoping any child handles\r | |
1827 | created by this driver.\r | |
1828 | \r | |
1829 | @param This Protocol instance pointer.\r | |
78c2ffb5 | 1830 | @param Controller Handle of device to stop driver on.\r |
1831 | @param NumberOfChildren Number of Children in the ChildHandleBuffer.\r | |
913cb9dc | 1832 | @param ChildHandleBuffer List of handles for the children we need to stop.\r |
1833 | \r | |
78c2ffb5 | 1834 | @return EFI_SUCCESS Success.\r |
1835 | @return EFI_DEVICE_ERROR Fail.\r | |
913cb9dc | 1836 | \r |
1837 | **/\r | |
1838 | EFI_STATUS\r | |
1839 | EFIAPI\r | |
1840 | EhcDriverBindingStop (\r | |
1841 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
1842 | IN EFI_HANDLE Controller,\r | |
1843 | IN UINTN NumberOfChildren,\r | |
1844 | IN EFI_HANDLE *ChildHandleBuffer\r | |
1845 | )\r | |
1846 | {\r | |
1847 | EFI_STATUS Status;\r | |
1848 | EFI_USB2_HC_PROTOCOL *Usb2Hc;\r | |
1849 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
1850 | USB2_HC_DEV *Ehc;\r | |
1851 | \r | |
1852 | //\r | |
1853 | // Test whether the Controller handler passed in is a valid\r | |
1854 | // Usb controller handle that should be supported, if not,\r | |
1855 | // return the error status directly\r | |
1856 | //\r | |
1857 | Status = gBS->OpenProtocol (\r | |
1858 | Controller,\r | |
1859 | &gEfiUsb2HcProtocolGuid,\r | |
c52fa98c | 1860 | (VOID **) &Usb2Hc,\r |
913cb9dc | 1861 | This->DriverBindingHandle,\r |
1862 | Controller,\r | |
1863 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1864 | );\r | |
1865 | \r | |
1866 | if (EFI_ERROR (Status)) {\r | |
1867 | return Status;\r | |
1868 | }\r | |
1869 | \r | |
1870 | Ehc = EHC_FROM_THIS (Usb2Hc);\r | |
1871 | PciIo = Ehc->PciIo;\r | |
1872 | \r | |
1873 | //\r | |
1874 | // Stop AsyncRequest Polling timer then stop the EHCI driver\r | |
1875 | // and uninstall the EHCI protocl.\r | |
1876 | //\r | |
41e8ff27 | 1877 | gBS->SetTimer (Ehc->PollTimer, TimerCancel, EHC_ASYNC_POLL_INTERVAL);\r |
1878 | EhcHaltHC (Ehc, EHC_GENERIC_TIMEOUT);\r | |
913cb9dc | 1879 | \r |
1880 | Status = gBS->UninstallProtocolInterface (\r | |
1881 | Controller,\r | |
1882 | &gEfiUsb2HcProtocolGuid,\r | |
1883 | Usb2Hc\r | |
1884 | );\r | |
1885 | \r | |
1886 | if (EFI_ERROR (Status)) {\r | |
1887 | return Status;\r | |
1888 | }\r | |
1889 | \r | |
1890 | if (Ehc->PollTimer != NULL) {\r | |
1891 | gBS->CloseEvent (Ehc->PollTimer);\r | |
1892 | }\r | |
1893 | \r | |
0428a6cb | 1894 | if (Ehc->ExitBootServiceEvent != NULL) {\r |
1895 | gBS->CloseEvent (Ehc->ExitBootServiceEvent);\r | |
1896 | }\r | |
1897 | \r | |
913cb9dc | 1898 | EhcFreeSched (Ehc);\r |
1899 | \r | |
78c2ffb5 | 1900 | if (Ehc->ControllerNameTable != NULL) {\r |
913cb9dc | 1901 | FreeUnicodeStringTable (Ehc->ControllerNameTable);\r |
1902 | }\r | |
1903 | \r | |
efe9186f | 1904 | //\r |
1905 | // Disable routing of all ports to EHCI controller, so all ports are \r | |
1906 | // routed back to the UHCI controller.\r | |
1907 | //\r | |
1908 | EhcClearOpRegBit (Ehc, EHC_CONFIG_FLAG_OFFSET, CONFIGFLAG_ROUTE_EHC);\r | |
1909 | \r | |
913cb9dc | 1910 | //\r |
68246fa8 | 1911 | // Restore original PCI attributes\r |
913cb9dc | 1912 | //\r |
68246fa8 | 1913 | PciIo->Attributes (\r |
1914 | PciIo,\r | |
1915 | EfiPciIoAttributeOperationSet,\r | |
1916 | Ehc->OriginalPciAttributes,\r | |
1917 | NULL\r | |
1918 | );\r | |
913cb9dc | 1919 | \r |
1920 | gBS->CloseProtocol (\r | |
1921 | Controller,\r | |
1922 | &gEfiPciIoProtocolGuid,\r | |
1923 | This->DriverBindingHandle,\r | |
1924 | Controller\r | |
1925 | );\r | |
1926 | \r | |
68246fa8 | 1927 | FreePool (Ehc);\r |
1928 | \r | |
96f6af14 | 1929 | return EFI_SUCCESS;\r |
913cb9dc | 1930 | }\r |
1931 | \r |